(2017) List of Results

National Radioactive Material Monitoring in the Water Environment in the Whole of Japan (2017)

List of Results (Final Report)

Results of Measurement in Public Water Areas (Water) ·····································1 Results of Measurement in Public Water Areas (Sediment) ·································7 Results of Measurement in Public Water Areas (Surrounding Environment)··········· 21 Results of Measurement of Groundwater (Water) ·········································· 36

Results of Measurement in Public Water Areas (Water)

Sampling location General items Water Water Secchi disk Detected γ-ray emitting radionuclides Total β radioactivity Sampling Transparency Electrical No. Prefecture Property Sampling Date Weather depth depth SS Turbidity Remarks Water area Location Municipality depth (River) conductivity Measured Detection Measured Detection (m) (Lake) (mg/L) (FNU) (m) (cm) (mS/m) Radionuclides value limit value limit (m) (Bq/L) (Bq/L) (Bq/L) (Bq/L)

Water purification plant intake at 1 Asahikawa City 2017/8/24 Cloudy 1.1 0.1 >100 - 8.3 2 <1 K-40 0.056 0.025 ND 0.026 Ishikari River in Asahikawa City Ishikari River Intake at the Shirakawa water 2 Sapporo City 2017/9/27 Sunny 2.0 0.1 68 - 11.2 7 7 K-40 0.054 0.028 0.043 0.024 purification plant in Sapporo City

Nakashibetsu Bridge 3 Teshio River (Intake at the Higashiyama water Shibetsu City 2017/8/23 Cloudy 0.6 0.1 >100 - 6.4 2 1 K-40 0.027 0.024 ND 0.025 purification plant in Shibetsu City)

4 Tokoro River Tadashi Bridge Kitami City 2017/8/25 Sunny 0.6 0.1 >100 - 16.3 7 1 K-40 0.10 0.041 0.079 0.027 Hokkaido Intake at the Aikoku water 5 Prefecture Kushiro River Kushiro City 2017/8/28 Sunny 1.0 0.1 88 - 17.6 18 2 K-40 0.069 0.040 0.057 0.025 purification plant in Kushiro City

6 Tokachi River Nantai Bridge Obihiro City 2017/8/28 Sunny 1.2 0.1 >100 - 6.8 1 <1 K-40 0.064 0.022 0.056 0.025 K-40 0.068 0.024 7 Sarugawa River Sarugawa Bridge (Tomigawa) Hidaka Town 2017/10/6 Sunny 1.0 0.1 12 - 14.3 41 30 0.059 0.027 Pb-212 0.0034 0.0015 Mitsumoribashi Bridge (Before the 8 Matsukura River Hakodate City 2017/8/30 Sunny 0.4 0.1 >100 - 7.2 1 <1 K-40 0.047 0.027 0.034 0.024 confluence with Torasawa River)

Shiribeshi- Intake at the Kitahiyama simple water Be-7 0.016 0.011 9 Setana Town 2017/8/30 Sunny 0.4 0.1 >100 - 10.6 2 <1 0.060 0.026 toshibetsu River plant in Kitahiyama Town K-40 0.079 0.020

10 Aomori Iwaki River Tsugaru-ohashi Bridge Nakadomari Town 2017/8/31 Sunny 2.9 0.1 44 - 16.0 11 8 K-40 0.084 0.027 0.057 0.027 Prefecture 11 Rivers Mabechi River Shiriuchi Bridge Hachinohe City 2017/9/1 Sunny 1.7 0.1 49 - 12.4 10 5 K-40 0.064 0.035 0.053 0.025 12 Mabechi River Fugane Bridge Ninohe City 2017/8/30 Sunny 1.8 0.1 52 - 10.1 6 2 K-40 0.048 0.031 0.036 0.026 Iwate 13 Heigawa River Miyako Bridge Miyako City 2017/9/9 Sunny 1.2 0.1 >100 - 381 1 <1 K-40 0.68 0.070 0.61 0.064 Prefecture 14 Kitakami River Chitose Bridge Ichinoseki City 2017/9/11 Cloudy 2.3 0.1 >100 - 12.5 2 1 K-40 0.055 0.028 0.037 0.025 K-40 0.074 0.026 15 Miyagi Abukuma River Iwanuma (Abukuma Bridge) Ichinoseki City 2017/8/24 Rain 1.0 0.1 42 - 14.9 9 4 Cs-134 0.0027 0.0014 0.074 0.026 Prefecture Cs-137 0.022 0.0013 16 Natori River Yuriage-ohashi Bridge Natori City 2017/9/8 Sunny 0.7 0.1 97 - 308 8 2 K-40 0.57 0.083 0.51 0.050 17 Akita Yoneshiro River Noshiro Bridge Noshiro City 2017/9/5 Sunny 2.3 0.1 72 - 16.8 3 2 K-40 0.053 0.031 0.038 0.025 18 Prefecture Omono River Kurose Bridge Akita City 2017/9/6 Sunny 2.9 0.1 97 - 11.7 4 1 K-40 0.045 0.022 0.034 0.026

19 Yamagata Mogami River Ryou Bridge Sakata City 2017/9/7 Cloudy 3.0 0.1 64 - 12.5 9 2 K-40 0.043 0.022 0.049 0.026 20 Prefecture Akagawa River Shinkawa Bridge Sakata City 2017/8/22 Rain 0.5 0.1 >100 - 13.2 2 1 K-40 0.042 0.024 0.036 0.024 K-40 0.031 0.026 21 Agano River Shingo Dam Kitakata City 2017/9/4 Sunny 6.6 0.1 >100 - 8.0 4 1 0.034 0.025 Cs-137 0.0038 0.0010 K-40 0.084 0.030 Fukushima 22 Abukuma River Taisho Bridge (Fushiguro) Date City 2017/9/11 Cloudy 1.2 0.1 >100 - 18.2 5 1 0.050 0.027 Prefecture Cs-134 0.0025 0.0012 Cs-137 0.018 0.0012 K-40 0.067 0.023 23 Kujigawa River Takachihara Bridge Yamatsuri Town 2017/9/5 Sunny 1.4 0.1 >100 - 12.0 2 <1 0.063 0.024 Cs-137 0.0015 0.0011

* This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Water)

Sampling location General items Water

Water Secchi disk Detected γ-ray emitting radionuclides Total β radioactivity Sampling Transparency Electrical No. Prefecture Property Sampling Date Weather depth depth SS Turbidity Remarks Water area Location Municipality depth (River) conductivity Measured Detection Measured Detection (m) (Lake) (mg/L) (FNU) (m) (cm) (mS/m) Radionuclides value limit value limit (m) (Bq/L) (Bq/L) (Bq/L) (Bq/L) K-40 0.17 0.022 Center (Surface layer) 0.1 36 32.7 14 9 Cs-134 0.0033 0.00088 0.17 0.028 Cs-137 0.024 0.00096 24 Lake Lake Kasumigaura Miho Village 2017/9/6 Rain 6.1 0.85 Ibaraki K-40 0.16 0.021 Prefecture Center (Bottom layer) 5.1 36 32.7 14 9 Cs-134 0.0030 0.00085 0.18 0.026 Cs-137 0.024 0.00086 K-40 0.099 0.027 25 Kokai River Fumimaki Bridge Toride City 2017/10/2 Cloudy 1.6 0.1 45 - 22.3 33 6 0.12 0.028 Cs-137 0.0083 0.0015 K-40 0.073 0.034 26 Nakagawa River Shinnaka Bridge Nakagawa Town 2017/9/8 Sunny 0.6 0.1 >100 - 15.8 2 <1 0.054 0.024 Tochigi Cs-137 0.0098 0.0014 Prefecture K-40 0.042 0.022 27 Kinugawa River Kinugawa Bridge (Hoshakuji Temple) Utsunomiya City 2017/9/29 Sunny 2.5 0.1 >100 - 10.2 <1 <1 0.047 0.026 Cs-137 0.0012 0.0010

Chiyoda Town K-40 0.093 0.035 28 Tonegawa River Toneozeki Weir /Gyoda City 2017/8/29 Sunny 0.9 0.1 68 - 19.6 7 2 0.074 0.025 Gunma (Saitama Prefecture) Cs-137 0.0026 0.0015 Prefecture K-40 0.070 0.023 29 Rivers Watarase River Watarase-ohashi Bridge Tatebayashi City 2017/8/29 Sunny 3.5 0.1 >100 - 18.7 <1 <1 0.057 0.026 Cs-137 0.0022 0.0011 30 Kugebashi Bridge Kumagaya City 2017/9/7 Cloudy 0.6 0.1 >100 - 20.8 2 <1 K-40 0.071 0.026 0.050 0.027 Arakawa River K-40 0.097 0.030 31 Akigase Intake Weir Saitama City/Shiki City 2017/9/8 Sunny 2.8 0.1 >100 - 24.3 3 1 0.064 0.025 Saitama Cs-137 0.0021 0.0011 Prefecture Nagareyama City K-40 0.097 0.027 32 Edogawa River Nagareyama Bridge (Chiba Prefecture) 2017/8/28 Sunny 0.7 0.1 54 - 19.0 28 13 0.074 0.026 /Misato City Cs-137 0.0046 0.0015 K-40 0.12 0.024 33 Tonegawa River Kakozeki Weir Tonosho Town 2017/10/3 Cloudy 4.3 0.1 48 - 21.6 9 6 0.11 0.027 Cs-137 0.0071 0.0012 34 Ichinomiya River Nakano Bridge Ichinomiya Town 2017/9/11 Sunny 2.6 0.1 52 - 2000 6 4 K-40 4.0 0.088 3.9 0.32 K-40 0.12 0.017 Lower area of water purification plant Chiba intake 0.1 23 27.5 20 11 0.11 0.028 Prefecture Cs-134 0.0033 0.00092 (Surface layer) Cs-137 0.025 0.00083 35 Lake Lake Inbanuma Sakura City 2017/9/15 Sunny 1.4 0.50 K-40 0.13 0.019 Lower area of water purification plant intake 0.4 18 28.5 34 19 Cs-134 0.0036 0.0010 0.12 0.025 (Bottom layer) Cs-137 0.027 0.0011 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Water)

Sampling location General items Water

K-40 0.071 0.034 36 Edogawa River Shinkatsushika Bridge Katsushika City 2017/8/29 Sunny 0.5 0.1 63 - 18.9 8 4 0.038 0.027 Cs-137 0.0035 0.0014

37 Tokyo Tamagawa River Haijima raw water supply point Akishima City 2017/8/23 Sunny 1.2 0.1 >100 - 12.1 2 2 K-40 0.033 0.025 ND 0.026

38 Metropolis Sumida River Ryogoku Bridge Chuo City/Sumida City 2017/8/25 Sunny 2.2 0.1 63 - 545 12 6 K-40 1.0 0.086 0.80 0.16

Koto City K-40 1.3 0.085 39 Arakawa River Kasai Bridge 2017/9/11 Sunny 2.0 0.1 50 - 745 17 6 1.2 0.10 /Edogawa City Cs-137 0.011 0.0035 K-40 1.8 0.085 40 Tsurumi River Rinko Tsurumigawa Bridge Yokohama City 2017/9/13 Sunny 4.5 0.1 >100 - 914 2 2 1.4 0.20 Cs-137 0.0039 0.0038 Kanagawa 41 Prefecture Sagami River Banyu Bridge Hiratsuka City 2017/9/5 Sunny 2.8 0.1 >100 - 2890 4 6 K-40 5.8 0.090 5.2 0.69 42 Sakawa River Sakawa Bridge Odawara City 2017/9/4 Cloudy 0.5 0.1 >100 - 17.3 4 2 K-40 0.070 0.031 0.049 0.025 43 Shinano River Heisei-ohashi Bridge Niigata City 2017/9/5 Sunny 5.0 0.1 57 - 13.6 12 4 K-40 0.052 0.023 0.053 0.025 Niigata K-40 0.035 0.027 44 Prefecture Agano River Oun Bridge Niigata City 2017/9/5 Sunny 1.9 0.1 >100 - 7.6 4 2 ND 0.026 Cs-137 0.0014 0.0010

Toyama 45 Jinzu River Hagiura Bridge Toyama City 2017/9/15 Sunny 5.3 0.1 >100 - 33.5 3 <1 K-40 0.068 0.024 0.041 0.028 Prefecture

46 Saigawa River Okuwa Bridge Kanazawa City 2017/9/14 Sunny 1.3 0.1 96 - 7.8 3 3 - - - ND 0.024 Ishikawa 47 Prefecture Tedori River Hakusangoguchi Dike Hakusan City 2017/9/16 Sunny 1.5 0.1 62 - 11.8 12 5 K-40 0.045 0.020 0.055 0.026

48 Fukui Rivers Kuzuryu River Fuseda Bridge Fukui City 2017/9/12 Cloudy 1.3 0.1 >100 - 752 8 2 K-40 1.3 0.086 1.3 0.18 49 Prefecture Kitagawa River Takatsuka Bridge Obama City 2017/9/11 Cloudy 0.7 0.1 >100 - 11.8 1 <1 K-40 0.026 0.023 0.026 0.024

50 Yamanashi Sagami River Katsuragawa Bridge Uenohara City 2017/8/31 Cloudy 2.8 0.1 >100 - 13.8 2 <1 K-40 0.038 0.033 0.037 0.026 51 Prefecture Fujikawa River Nanbu Bridge Nanbu Town 2017/8/30 Sunny 0.5 0.1 >100 - 20.7 <1 <1 K-40 0.076 0.031 0.059 0.026 52 Shinano River Ozeki Bridge Iiyama City 2017/9/23 Cloudy 0.4 0.1 88 - 19.1 7 1 K-40 0.065 0.031 0.061 0.026 Nagano 53 Saigawa River Koichi Bridge Nagano City Prefecture 2017/9/22 Cloudy 2.6 0.1 92 - 12.7 5 1 K-40 0.049 0.027 0.049 0.026 54 Tenryu River Tsutsuji Bridge Iida City 2017/9/25 Sunny 2.1 0.1 >100 - 16.1 3 2 K-40 0.070 0.027 0.057 0.025

55 Gifu Kisogawa River Tokai-ohashi Bridge (Naruto) Kaizu City 2017/9/15 Sunny 1.4 0.1 >100 - 6.2 4 2 K-40 0.027 0.020 0.032 0.025 56 Prefecture Nagara River Tokai-ohashi Bridge Kaizu City 2017/9/15 Sunny 7.7 0.1 >100 - 9.3 1 <1 K-40 0.041 0.025 ND 0.027 57 Kanogawa River Kurose Bridge Numazu City 2017/9/26 Sunny 0.7 0.1 >100 - 15.5 3 <1 K-40 0.055 0.040 0.034 0.027

Yaizu City 58 Oigawa River Fujimi Bridge 2017/9/27 Sunny 2.3 0.1 75 - 17.3 2 2 K-40 0.042 0.028 0.051 0.025 Shizuoka /Yoshida Town Prefecture Iwata City Be-7 0.013 0.012 59 Tenryu River Kaketsuka Bridge 2017/9/28 Cloudy 2.3 0.1 55 - 10.9 8 3 0.067 0.025 /Hamamatsu City K-40 0.067 0.024 60 Shonai River Mizuwake Bridge Nagoya City 2017/9/14 Sunny 0.4 0.1 >100 - 32.0 4 1 K-40 0.16 0.026 0.12 0.025

Aichi Okazaki City Be-7 0.021 0.018 61 Yahagi River Iwazutenjin Bridge 2017/9/12 Rain 3.0 0.1 65 - 6.4 19 2 0.062 0.026 Prefecture /Toyota City K-40 0.049 0.022 62 Toyogawa River Eshima Bridge Toyokawa City 2017/9/11 Sunny 0.5 0.1 >100 - 9.2 <1 <1 K-40 0.027 0.025 0.033 0.026 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Water)

Sampling location General items Water

65 Adogawa River Joan Bridge Takashima City 2017/8/29 Sunny 0.9 0.1 >100 - 6.5 <1 <1 - - - ND 0.026

Karasakioki-Chuo 0.1 >100 11.1 <1 <1 K-40 0.045 0.019 0.041 0.024 Shiga (Surface layer) Prefecture 66 Lake Lake Biwako － 2017/8/30 Cloudy 4.5 2.9 Karasakioki-Chuo 3.5 >100 11.2 2 <1 K-40 0.048 0.020 0.041 0.026 (Bottom layer)

67 Yuragawa River Yuragawa Bridge Maizuru City 2017/9/1 Sunny 3.2 0.1 >100 - 96.3 4 2 K-40 0.17 0.027 0.14 0.033 Kyoto Before the confluence of three 68 Prefecture Katsura River Oyamazaki Town 2017/8/31 Sunny 1.6 0.1 >100 - 30.6 1 <1 K-40 0.25 0.028 0.21 0.025 tributaries of Katsura River

Itami City 69 Inagawa River Gunko Bridge 2017/9/8 Sunny 0.8 0.1 >100 - 17.4 4 1 K-40 0.074 0.021 0.059 0.027 (Hyogo Prefecture) Osaka 70 Prefecture Yodogawa River Sugaharashirokita-ohashi Bridge Osaka City 2017/9/22 Cloudy 3.0 0.1 65 - 13.2 12 3 K-40 0.071 0.024 ND 0.025

71 Ishikawa River Takahashi Tondabayashi City 2017/9/11 Cloudy 0.1 0.1 >100 - 32.4 1 <1 K-40 0.093 0.024 0.068 0.026 72 Kakogawa River Kakogawa Bridge Kakogawa City 2017/9/5 Cloudy 0.5 0.1 85 - 20.0 5 3 K-40 0.12 0.024 0.083 0.026 Ac-228 0.012 0.0046

Hyogo Bi-214 0.0089 0.0029 73 Mukogawa River Hyakkenbi Takarazuka City 2017/9/8 Sunny 0.3 0.1 >100 - 43.4 4 1 0.24 0.028 Prefecture K-40 0.26 0.023 Pb-214 0.010 0.0024 74 Maruyama River Kaminogo Bridge Toyooka City 2017/9/4 Sunny 0.5 0.1 >100 - 13.2 3 <1 K-40 0.047 0.028 0.037 0.024 Rivers 75 Yamato River Fujii Oji Town 2017/9/5 Cloudy 0.5 0.1 85 - 29.1 4 2 K-40 0.14 0.026 0.15 0.026 Nara 76 Prefecture Kinokawa River Okura Bridge Gojo City 2017/9/6 Cloudy 2.9 0.1 >100 - 10.7 <1 <1 K-40 0.050 0.023 0.029 0.027

77 Wakayama Kinokawa River Shinrokkaizeki Weir Wakayama City 2017/9/21 Sunny 3.0 0.1 83 - 12.0 2 <1 K-40 0.038 0.024 0.040 0.024 78 Prefecture Kumano River Kumano-ohashi Bridge Shingu City 2017/10/3 Cloudy 4.0 0.1 >100 - 277 <1 <1 K-40 0.48 0.074 0.45 0.048

Tottori 79 Sendai River Gyotoku Tottori City 2017/8/29 Cloudy 1.9 0.1 >100 - 9.1 3 <1 K-40 0.028 0.025 ND 0.026 Prefecture

80 Shimane Hiikawa River Kandatsu Bridge Izumo City 2017/8/31 Sunny 0.4 0.1 >100 - 9.8 1 <1 K-40 0.036 0.026 0.033 0.024

81 Prefecture Gonokawa River Sakurae-ohashi Bridge Gotsu City 2017/9/1 Sunny 3.5 0.1 >100 - 10.0 <1 <1 K-40 0.051 0.021 0.038 0.025

82 Okayama Asahi River Otoite Weir Okayama City 2017/8/28 Sunny 0.8 0.1 >100 - 9.6 2 1 K-40 0.044 0.024 0.035 0.026 83 Prefecture Takahashi River Kasumi Bridge Kurashiki City 2017/8/25 Sunny 2.7 0.1 73 - 11.6 4 3 K-40 0.042 0.021 ND 0.024

Water purification plant intake in 84 Ota River Hiroshima City 2017/8/22 Sunny 1.5 0.1 >100 - 6.7 1 <1 - - - ND 0.025 Hiroshima Hesaka Prefecture 85 Ashida River Kominomi Bridge Fukuyama City 2017/8/21 Sunny 1.2 0.1 53 - 14.7 8 5 K-40 0.077 0.022 0.066 0.026 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Water)

Sampling location General items Water

Water purification plant intake for the 86 Nishiki River Iwakuni City 2017/8/24 Sunny 5.5 0.1 >100 - 8.2 <1 <1 K-40 0.027 0.025 0.027 0.024 Yamaguchi city Prefecture 87 Kotogawa River Suenobu Bridge Ube City 2017/8/23 Sunny 3.4 0.1 88 - 14.1 2 2 K-40 0.059 0.020 ND 0.026

88 Tokushima Yoshino River Takase Bridge Ishii Town 2017/9/13 Sunny 4.9 0.1 >100 - 10.2 <1 1 K-40 0.042 0.023 0.036 0.026 Prefecture 89 Nakagawa River Nakagawa Bridge Anan City 2017/9/15 Cloudy 4.5 0.1 >100 - 10.5 <1 2 K-40 0.019 0.019 ND 0.024

Kagawa 90 Dokigawa River Marugame Bridge Marugame City 2017/9/11 Sunny 0.4 0.1 >100 - 18.3 5 2 K-40 0.11 0.021 0.086 0.027 Prefecture

91 Ehime Shigenobu River Deai Bridge Matsuyama City 2017/9/5 Light Rain 0.4 0.1 >100 - 20.2 5 2 K-40 0.099 0.020 0.080 0.027 92 Prefecture Hijikawa River Hijikawa Bridge Ozu City 2017/9/6 Sunny 0.9 0.1 >100 - 13.2 2 <1 K-40 0.034 0.027 ND 0.024

93 Kochi Kagami River Kachuzeki Weir Kochi City 2017/9/8 Sunny 2.8 0.1 >100 - 10.7 <1 <1 K-40 0.024 0.018 ND 0.025 94 Prefecture Niyodo River Hatazeki Weir (1) Center of flow Ino Town 2017/9/7 Sunny 0.5 0.1 >100 - 10.2 <1 <1 K-40 0.029 0.023 ND 0.027

95 Onga River Hinode Bridge Nogata City 2017/8/21 Cloudy 1.3 0.1 64 - 28.2 8 6 K-40 0.10 0.026 0.087 0.025 Fukuoka 96 Nakagawa River Shiobara Bridge Fukuoka City Prefecture 2017/8/24 Sunny 1.3 0.1 >100 - 22.2 2 2 K-40 0.072 0.030 0.038 0.026 97 Chikugo River Senoshita Kurume City 2017/8/23 Sunny 5.9 0.1 34 - 16.3 12 8 K-40 0.10 0.035 0.11 0.027

Saga Rivers 98 Kasegawa River Kasebashi Bridge Saga City 2017/8/28 Sunny 5.0 0.1 66 - 10.8 5 5 K-40 0.067 0.029 0.045 0.024 Prefecture

Honmyogawa 99 In front of Tenma Park Isahaya City 2017/8/29 Sunny 1.2 0.1 >100 - 11.1 <1 <1 K-40 0.085 0.032 0.069 0.026 Nagasaki River Prefecture 100 Urakami River Ohashizeki Weir Nagasaki City 2017/8/30 Sunny 1.0 0.1 >100 - 20.8 1 <1 K-40 0.057 0.034 0.055 0.027

101 Kumamoto Kikuchi River Shiroishi Nagomi Town 2017/8/31 Sunny 7.6 0.1 65 - 16.4 4 2 K-40 0.11 0.042 0.088 0.025

102 Prefecture Midori River Uesugizeki Weir Kumamoto City 2017/9/1 Sunny 1.3 0.1 52 - 13.8 5 5 K-40 0.075 0.037 0.054 0.026

103 Oita Oita River Funai-ohashi Bridge Oita City 2017/9/15 Cloudy 1.8 0.1 75 - 20.6 7 3 K-40 0.11 0.037 0.096 0.027 104 Prefecture Ono River Shirataki Bridge Oita City 2017/9/12 Cloudy 0.9 0.1 88 - 14.7 7 2 K-40 0.16 0.045 0.087 0.025

105 Miyazaki Gokase River Miwa Nobeoka City 2017/9/13 Cloudy 1.4 0.1 >100 - 10.4 2 <1 K-40 0.070 0.034 0.069 0.026 106 Prefecture Oyodo River Shinaioi Bridge Miyazaki City 2017/9/8 Sunny 1.5 0.1 60 - 16.8 8 3 K-40 0.15 0.041 0.10 0.027

107 Kagoshima Kotsuki River Iwasaki Bridge Kagoshima City 2017/9/5 Sunny 1.0 0.1 >100 - 15.8 1 <1 K-40 0.16 0.044 0.11 0.025 108 Prefecture Kimotsuki River Matase Bridge Kanoya City 2017/9/6 Sunny 1.1 0.1 93 - 15.7 5 1 K-40 0.16 0.048 0.14 0.027

109 Okinawa Genka River Water intake Nago City 2017/9/22 Sunny 0.4 0.1 >100 - 20.0 <1 <1 K-40 0.043 0.022 ND 0.027

110 Prefecture Miyara River Omoto water intake Ishigaki City 2017/9/20 Sunny 1.6 0.1 50 - 18.5 9 3 K-40 0.041 0.030 0.063 0.025 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Water area Location Municipality Date length content Property Measured value Detection limit Measured value Detection limit (m) Radionuclides (cm) (%) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 13 6.8 Bi-214 15 3.8 Water purification plant intake at Ishikari River K-40 480 18 1 Asahikawa City 2017/8/24 Cloudy 1.1 10 75.9 Sand 620 17 in Asahikawa City Pb-212 21 3.1 Pb-214 18 3.5 Tl-208 18 4.9 Ishikari River Ac-228 15 6.1 Bi-214 12 3.2 Intake at the Shirakawa water purification plant K-40 400 14 2 Sapporo City 2017/9/27 Sunny 2.0 10 81.1 Sand/Gravel 490 15 in Sapporo City Pb-212 15 2.8 Pb-214 15 3.1 Tl-208 15 4.2 Ac-228 27 4.8 Bi-212 22 22 Nakashibetsu Bridge Bi-214 21 3.1 3 Teshio River (Intake at the Higashiyama water purification Shibetsu City 2017/8/23 Cloudy 0.6 10 57.4 Silt/Sand K-40 530 19 680 18 plant in Shibetsu City) Pb-212 28 2.7 Pb-214 18 3.4 Tl-208 25 4.1 Ac-228 19 6.0 Bi-214 17 3.1 K-40 400 17 4 Tokoro River Tadashi Bridge Kitami City 2017/8/25 Sunny 0.6 10 71.2 Sand/Gravel 530 17 Pb-212 21 2.5 Pb-214 14 3.3 Tl-208 22 3.8 Ac-228 7.7 3.9 Bi-214 4.1 2.8 Intake at the Aikoku water purification plant in K-40 170 17 5 Kushiro River Kushiro City 2017/8/28 Sunny 1.0 10 63.1 Sand/Gravel Pb-212 7.3 1.8 250 15 Kushiro City Hokkaido Pb-214 6.4 2.2 Rivers Prefecture Tl-208 4.7 3.0 Cs-137 3.1 1.3 Ac-228 16 6.4 Sediment sample was Bi-214 10 3.3 collected on the opposite K-40 480 17 bank (left bank side) 100m 6 Tokachi River Nantai Bridge Obihiro City 2017/8/28 Sunny 1.2 10 79.7 Sand/Gravel 550 17 Pb-212 18 2.9 downstream from the original Pb-214 15 3.5 location due to embankment construction. Tl-208 15 4.6 Ac-228 14 6.0 Bi-214 12 2.5 K-40 320 14 7 Sarugawa River Sarugawa Bridge (Tomigawa) Hidaka Town 2017/10/6 Sunny 1.0 10 83.5 Sand/Gravel 350 17 Pb-212 15 2.6 Pb-214 9.8 3.0 Tl-208 13 3.8 Ac-228 18 6.4 Bi-214 10 3.3 Mitsumoribashi Bridge (Before the confluence K-40 310 19 8 Matsukura River Hakodate City 2017/8/30 Sunny 0.4 10 68.1 Sand/Gravel Pb-212 15 2.9 380 17 with Torasawa River) Pb-214 13 3.5 Tl-208 9.9 5.0 Cs-137 3.9 1.6 Ac-228 26 6.4 Bi-212 24 23 Bi-214 14 4.0 Shiribeshi- Intake at the Kitahiyama simple water plant in K-40 460 17 9 Setana Town 2017/8/30 Sunny 0.4 10 82.3 Sand/Gravel 660 17 toshibetsu River Kitahiyama Town Pb-212 24 3.2 Pb-214 19 3.6 Tl-208 21 5.3 Cs-137 2.0 1.8 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Water area Location Municipality Date length content Property Measured value Detection limit Measured value Detection limit (m) Radionuclides (cm) (%) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 23 7.0 Bi-214 19 3.9 K-40 370 27 Nakadomari Pb-212 19 2.9 10 Iwaki River Tsugaru-ohashi Bridge 2017/8/31 Sunny 2.9 10 37.0 Silt/Sand 490 19 Town Pb-214 16 3.8 Ra-226 45 33 Aomori Tl-208 15 5.5 Cs-137 5.0 1.7 Prefecture Ac-228 13 6.2 Bi-214 8.9 3.7 K-40 260 23 11 Mabechi River Shiriuchi Bridge Hachinohe City 2017/9/1 Sunny 1.7 10 47.5 Silt Pb-212 13 2.6 320 17 Pb-214 12 3.2 Tl-208 16 4.4 Cs-137 3.4 1.6 Ac-228 14 4.4 Bi-212 21 17 Bi-214 7.2 3.0 K-40 260 14 12 Mabechi River Fugane Bridge Ninohe City 2017/8/30 Sunny 1.8 10 73.0 Silt/Sand 300 16 Pb-212 15 2.1 Pb-214 10 2.5 Tl-208 13 2.7 Cs-137 1.7 1.1 Ac-228 31 9.1 Bi-214 20 6.1 Iwate K-40 480 26 13 Heigawa River Miyako Bridge Miyako City 2017/9/9 Sunny 1.2 10 38.7 Silt Pb-212 32 4.3 660 18 Prefecture Rivers Pb-214 23 5.3 Tl-208 28 7.1 Cs-137 16 2.6 Ac-228 18 4.5 Bi-212 19 16 Bi-214 9.6 2.9 K-40 340 16 14 Kitakami River Chitose Bridge Ichinoseki City 2017/9/11 Cloudy 2.3 10 73.9 Sand/Gravel 410 16 Pb-212 13 2.3 Pb-214 9.3 2.8 Tl-208 9.1 3.9 Cs-137 11 1.3 Ac-228 14 4.1 Bi-214 9.7 3.3 K-40 380 15 Pb-212 16 2.7 15 Abukuma River Iwanuma (Abukuma Bridge) Iwanuma City 2017/8/24 Rain 1.0 10 76.7 Sand 480 17 Pb-214 12 3.6 Tl-208 13 4.2 Cs-134 12 1.5 Miyagi Cs-137 85 1.7 Prefecture Ac-228 9.2 5.3 Bi-214 7.4 3.8 K-40 340 20 Pb-212 14 2.7 16 Natori River Yuriage-ohashi Bridge Natori City 2017/9/8 Sunny 0.7 10 59.1 Sand 420 16 Pb-214 12 3.3 Tl-208 11 4.9 Cs-134 6.6 1.6 Cs-137 48 1.8 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Date Water area Location Municipality (m) length content Property Measured value Detection limit Measured value Detection limit (cm) (%) Radionuclides (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 14 3.5 Bi-212 20 16 Bi-214 10 2.6 K-40 380 15 17 Yoneshiro River Noshiro Bridge Noshiro City 2017/9/5 Sunny 2.3 10 83.6 Sand 480 15 Pb-212 12 2.1 Pb-214 11 2.3 Ra-226 24 22 Akita Tl-208 8.8 3.0 Ac-228 20 6.3 Prefecture Bi-212 26 19 Bi-214 17 3.6 K-40 440 19 18 Omono River Kurose Bridge Akita City 2017/9/6 Sunny 2.9 10 56.9 Silt/Sand Pb-212 23 2.7 510 17 Pb-214 22 3.2 Ra-226 37 33 Tl-208 17 4.4 Cs-137 6.5 1.4 Ac-228 22 5.1 Bi-212 25 22 Bi-214 19 3.2 K-40 350 23 19 Mogami River Ryou Bridge Sakata City 2017/9/7 Cloudy 3.0 10 53.5 Silt/Sand 550 18 Pb-212 22 2.8 Pb-214 19 3.5 Yamagata Tl-208 20 4.9 Cs-137 16 1.8 Prefecture Ac-228 31 7.1 Bi-214 20 4.2 K-40 480 23 20 Akagawa River Shinkawa Bridge Sakata City 2017/8/22 Rain 0.5 10 48.7 Silt/Sand Pb-212 38 3.2 720 20 Rivers Pb-214 22 3.9 Tl-208 28 5.4 Cs-137 6.3 1.8 Ac-228 40 9.1 Bi-214 25 6.0 K-40 500 28 Pb-212 35 4.8 21 Agano River Shingo Dam Kitakata City 2017/9/4 Sunny 6.6 10 46.1 Silt Pb-214 32 5.8 750 19 Ra-226 58 49 Tl-208 31 7.8 Cs-134 6.6 2.7 Cs-137 55 2.9 Ac-228 25 6.1 Bi-212 28 23 Bi-214 13 6.4 Fukushima K-40 370 18 22 Prefecture Abukuma River Taisho Bridge (Fushiguro) Date City 2017/9/11 Cloudy 1.2 10 59.5 Sand Pb-212 25 5.4 690 17 Pb-214 16 7.3 Tl-208 21 8.2 Cs-134 56 3.2 Cs-137 460 3.3 Ac-228 18 5.1 Bi-212 22 20 Bi-214 16 3.4 K-40 660 16 23 Kujigawa River Takachihara Bridge Yamatsuri Town 2017/9/5 Sunny 1.4 10 79.5 Sand 760 16 Pb-212 20 2.5 Pb-214 16 3.0 Tl-208 19 3.5 Cs-137 8.0 1.3 Ac-228 26 5.9 Bi-212 34 19 Bi-214 18 4.3 Ibaraki K-40 280 22 24 Lake Lake Kasumigaura Center Miho Village 2017/9/6 Rain 6.1 10 15.0 Silt Pb-212 31 3.7 540 20 Prefecture Pb-214 18 5.4 Tl-208 25 6.3 Cs-134 43 2.5 Cs-137 310 2.4 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Date Water area Location Municipality (m) length content Property Measured value Detection limit Measured value Detection limit (cm) (%) Radionuclides (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 23 5.1 Bi-212 24 21 Bi-214 15 3.4 Ibaraki K-40 520 17 25 Kokai River Fumimaki Bridge Toride City 2017/10/2 Cloudy 1.6 10 76.4 Sand Pb-212 28 2.7 650 16 Prefecture Pb-214 18 3.2 Tl-208 22 3.9 Cs-134 4.1 1.5 Cs-137 30 1.7 Ac-228 15 3.9 Bi-212 22 17 Bi-214 8.0 3.1 K-40 350 14 26 Nakagawa River Shinnaka Bridge Nakagawa Town 2017/9/8 Sunny 0.6 10 73.4 Sand 440 16 Pb-212 15 2.4 Pb-214 8.0 2.9 Tl-208 14 4.0 Tochigi Cs-137 17 1.1 Prefecture Ac-228 29 6.8 Bi-212 45 26 Bi-214 14 4.1 Kinugawa Bridge K-40 510 16 27 Kinugawa River Utsunomiya City 2017/9/29 Sunny 2.5 10 79.3 Sand 630 17 (Hoshakuji Temple) Pb-212 29 3.4 Pb-214 18 3.8 Tl-208 25 5.3 Cs-137 9.1 2.1 Ac-228 19 7.4 Be-7 80 71 Chiyoda Town Bi-214 15 5.3 /Gyoda City K-40 280 25 28 Tonegawa River Toneozeki Weir 2017/8/29 Sunny 0.9 10 29.9 Silt Pb-212 19 3.9 420 17 (Saitama Pb-214 12 5.4 Prefecture) Tl-208 15 6.7 Cs-134 15 2.6 Gunma Rivers Cs-137 130 2.5 Prefecture Ac-228 23 6.5 Bi-214 13 4.3 K-40 490 21 Tatebayashi Pb-212 24 3.5 29 Watarase River Watarase-ohashi Bridge 2017/8/29 Sunny 3.5 10 68.3 Silt/Sand 670 17 City Pb-214 17 3.9 Tl-208 19 5.7 Cs-134 2.9 1.8 Cs-137 27 2.2 Ac-228 22 4.1 Bi-214 13 2.8 K-40 350 14 Pb-212 19 2.2 30 Kugebashi Bridge Kumagaya City 2017/9/7 Cloudy 0.6 10 82.5 Sand 440 17 Pb-214 14 2.7 Ra-226 29 26 Tl-208 19 3.4 Cs-137 3.8 1.3 Arakawa River Ac-228 21 7.5 Bi-214 14 4.6 K-40 340 23 Saitama Saitama City Pb-212 23 3.5 31 Akigase Intake Weir 2017/9/8 Sunny 2.8 10 50.2 Silt/Sand 470 16 Prefecture /Shiki City Pb-214 12 4.1 Tl-208 19 5.5 Cs-134 2.8 1.9 Cs-137 20 2.4 Ac-228 18 7.2 Bi-214 17 4.1 Nagareyama K-40 340 24 City (Chiba Pb-212 25 3.6 32 Edogawa River Nagareyama Bridge 2017/8/28 Sunny 0.7 10 59.2 Silt/Sand 450 17 Prefecture) Pb-214 18 4.1 /Misato City Tl-208 19 5.6 Cs-134 4.5 2.0 Cs-137 34 2.1 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Water area Location Municipality Date length content Property Measured value Detection limit Measured value Detection limit (m) Radionuclides (cm) (%) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 16 5.0 Bi-214 11 3.3 K-40 410 15 Pb-212 19 2.5 33 Tonegawa River Kakozeki Weir Tonosho Town 2017/10/3 Cloudy 4.3 10 69.5 Silt/Sand 530 18 Pb-214 10 3.3 Tl-208 13 4.6 Cs-134 4.1 1.5 Cs-137 31 1.6 Rivers Ac-228 9.9 3.9 Bi-214 7.1 2.8 K-40 370 16 Chiba Ichinomiya Pb-212 14 2.4 34 Prefecture Ichinomiya River Nakano Bridge 2017/9/11 Sunny 2.6 10 60.4 Silt/Sand Pb-214 11 2.7 420 16 Town Ra-226 27 25 Tl-208 9.5 4.0 Cs-134 3.0 1.2 Cs-137 19 1.5 Bi-214 13 9.1 K-40 200 28 Pb-212 18 6.7 35 Lake Lake Inbanuma Lower area of water purification plant intake Sakura City 2017/9/15 Sunny 1.4 10 23.0 Silt Pb-214 17 10 460 17 Tl-208 11 11 Cs-134 49 4.3 Cs-137 390 4.3 Ac-228 30 6.8 Bi-212 30 28 Bi-214 17 6.0 K-40 320 27 36 Edogawa River Shinkatsushika Bridge Katsushika City 2017/8/29 Sunny 0.5 10 44.4 Silt/Sand Pb-212 22 4.6 550 18 Pb-214 22 6.2 Tl-208 22 7.8 Cs-134 29 3.0 Cs-137 220 3.3 Ac-228 26 6.6 Bi-212 30 23 Bi-214 17 5.1 K-40 580 17 37 Tamagawa River Haijima raw water supply point Akishima City 2017/8/23 Sunny 1.2 10 79.9 Sand/Gravel Pb-212 28 3.8 660 17 Pb-214 18 5.0 Tl-208 26 5.9 Tokyo Cs-134 4.8 2.1 Rivers Cs-137 39 2.1 Metropolis Ac-228 13 4.1 Bi-212 19 16 Bi-214 9.0 2.8 Chuo City K-40 320 15 38 Sumida River Ryogoku Bridge 2017/8/25 Sunny 2.2 10 70.3 Silt/Sand Pb-212 15 2.2 370 16 /Sumida City Pb-214 9.2 2.9 Tl-208 10 3.7 Cs-134 1.5 1.2 Cs-137 9.5 1.3 Ac-228 19 8.9 Bi-214 13 7.3 K-40 410 28 Koto City Pb-212 22 5.5 39 Arakawa River Kasai Bridge 2017/9/11 Sunny 2.0 10 40.7 Silt 670 18 /Edogawa City Pb-214 15 7.3 Tl-208 20 8.5 Cs-134 30 3.1 Cs-137 200 3.1 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Niigata Tl-208 33 5.6 Rivers Ac-228 33 6.3 Prefecture Bi-212 30 23 Bi-214 20 3.6 K-40 640 18 44 Agano River Oun Bridge Niigata City 2017/9/5 Sunny 1.9 10 71.6 Sand Pb-212 33 2.8 850 18 Pb-214 23 3.0 Ra-226 47 29 Tl-208 30 4.3 Cs-137 12 1.6 Ac-228 49 8.6 Bi-212 43 35 Bi-214 37 4.6 Toyama K-40 620 28 45 Jinzu River Hagiura Bridge Toyama City 2017/9/15 Sunny 5.3 10 35.7 Silt/Sand 890 20 Prefecture Pb-212 55 3.7 Pb-214 42 4.4 Tl-208 47 5.9 Cs-137 4.9 2.7 Ac-228 27 4.9 Bi-212 28 19 Bi-214 17 3.2 K-40 540 16 46 Saigawa River Okuwa Bridge Kanazawa City 2017/9/14 Sunny 1.3 10 71.0 Sand Pb-212 29 2.7 710 17 Pb-214 16 3.3 Ra-226 29 28

Ishikawa Tl-208 27 4.4 Cs-137 1.7 1.5 Prefecture Ac-228 39 6.1 Bi-212 38 24 Bi-214 22 3.5 K-40 620 17 47 Tedori River Hakusangoguchi Dike Hakusan City 2017/9/16 Sunny 1.5 10 76.2 Sand/Gravel 740 18 Pb-212 40 2.9 Pb-214 25 3.5 Ra-226 55 35 Tl-208 35 4.5 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Yamanashi Tl-208 12 3.1 Cs-137 2.0 1.2 Prefecture Ac-228 29 5.0 Bi-212 21 16 Bi-214 19 2.6 51 Fujikawa River Nanbu Bridge Nanbu Town 2017/8/30 Sunny 0.5 10 78.7 Sand/Gravel K-40 530 16 650 15 Pb-212 27 2.4 Pb-214 19 3.0 Tl-208 24 3.5 Ac-228 49 6.4 Bi-212 56 27 Bi-214 34 3.8 Rivers K-40 580 24 52 Shinano River Ozeki Bridge Iiyama City 2017/9/23 Cloudy 0.4 10 54.0 Silt/Sand 740 18 Pb-212 50 3.4 Pb-214 31 4.2 Tl-208 38 5.7 Cs-137 4.6 2.1 Ac-228 33 8.7 Bi-212 46 30 Nagano Bi-214 23 4.2 Prefecture K-40 700 22 53 Saigawa River Koichi Bridge Nagano City 2017/9/22 Cloudy 2.6 10 72.7 Sand 890 18 Pb-212 38 3.9 Pb-214 25 4.4 Ra-226 60 38 Tl-208 32 6.2

Ac-228 28 7.5 Bi-214 17 4.3 K-40 590 19 54 Tenryu River Tsutsuji Bridge Iida City 2017/9/25 Sunny 2.1 10 72.0 Sand 740 15 Pb-212 38 3.4 Pb-214 19 3.6 Tl-208 35 5.5 Ac-228 30 5.9 Bi-212 32 20 Bi-214 19 3.1 55 Kisogawa River Tokai-ohashi Bridge (Naruto) Kaizu City 2017/9/15 Sunny 1.4 10 74.6 Sand K-40 930 18 1,000 18 Pb-212 33 2.7 Pb-214 17 3.1 Gifu Tl-208 29 4.2 Ac-228 40 6.1 Prefecture Bi-212 44 23 Bi-214 24 3.5 K-40 700 20 56 Nagara River Tokai-ohashi Bridge Kaizu City 2017/9/15 Sunny 7.7 10 62.6 Silt 830 18 Pb-212 41 3.2 Pb-214 27 3.7 Ra-226 42 27 Tl-208 34 5.0 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Mie Tl-208 12 3.5 Ac-228 29 5.2 Prefecture Bi-212 29 19 Bi-214 25 3.7 64 Miyakawa River Watarai Bridge Ise City 2017/9/26 Sunny 2.4 10 65.8 Silt K-40 590 18 680 18 Pb-212 33 2.9 Pb-214 23 3.3 Tl-208 25 5.0 Ac-228 25 4.8 Bi-212 22 20 Bi-214 15 2.9 Shiga K-40 470 15 65 Adogawa River Joan Bridge Takashima City 2017/8/29 Sunny 0.9 10 85.8 Sand/Gravel 590 17 Prefecture Pb-212 28 2.5 Pb-214 16 2.8 Ra-226 32 24 Tl-208 26 3.7 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Water area Location Municipality Date length content Property Measured value Detection limit Measured value Detection limit (m) Radionuclides (cm) (%) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 89 7.4 Bi-212 91 35 Bi-214 38 5.5 Shiga K-40 620 26 66 Lake Lake Biwako Karasakioki-Chuo － 2017/8/30 Cloudy 4.5 10 29.5 Silt 1,000 21 Prefecture Pb-212 97 4.5 Pb-214 44 5.3 Tl-208 92 6.6 Cs-137 5.7 2.7 Ac-228 18 4.9 Bi-214 14 2.6 Silt/Sand K-40 390 16 67 Yuragawa River Yuragawa Bridge Maizuru City 2017/9/1 Sunny 3.2 10 74.1 Pb-212 20 2.3 480 18 /Gravel Pb-214 16 2.6 Kyoto Ra-226 30 23 Tl-208 16 3.6 Prefecture Ac-228 17 3.8 Bi-214 9.4 1.9 Before the confluence of three tributaries of Oyamazaki K-40 680 12 68 Katsura River 2017/8/31 Sunny 1.6 10 88.1 Sand/Gravel 570 16 Katsura River Town Pb-212 16 1.5 Pb-214 9.8 1.9 Tl-208 11 2.7 Ac-228 19 3.9 Itami City Bi-214 13 2.3 K-40 690 12 69 Inagawa River Gunko Bridge (Hyogo 2017/9/8 Sunny 0.8 10 84.4 Sand/Gravel 760 17 Pb-212 22 1.7 Prefecture) Pb-214 13 2.1 Tl-208 17 3.3 Ac-228 56 7.5 Bi-212 65 28 Bi-214 35 4.8 70 Osaka Yodogawa River Sugaharashirokita-ohashi Bridge Osaka City 2017/9/22 Cloudy 3.0 10 48.9 Silt K-40 600 24 850 20 Prefecture Pb-212 55 3.9 Pb-214 38 4.3 Tl-208 55 5.4 Ac-228 18 5.4 Rivers Bi-212 18 15 Tondabayashi Bi-214 11 3.0 71 Ishikawa River Takahashi 2017/9/11 Cloudy 0.1 10 81.9 Sand/Gravel K-40 710 14 770 15 City Pb-212 21 2.5 Pb-214 11 2.7 Tl-208 21 3.5 Ac-228 20 4.6 Bi-214 11 2.8 K-40 490 15 72 Kakogawa River Kakogawa Bridge Kakogawa City 2017/9/5 Cloudy 0.5 10 88.0 Sand/Gravel Pb-212 20 2.2 560 17 Pb-214 12 2.6 Ra-226 29 22 Tl-208 18 3.3 Ac-228 37 5.6 Bi-212 33 19 Bi-214 25 3.7 Hyogo K-40 940 17 73 Mukogawa River Hyakkenbi Takarazuka City 2017/9/8 Sunny 0.3 10 80.1 Sand/Gravel 1,100 19 Prefecture Pb-212 38 2.8 Pb-214 29 3.4 Ra-226 49 34 Tl-208 33 4.7 Ac-228 21 5.0 Bi-212 24 18 Bi-214 15 2.8 74 Maruyama River kaminogo Bridge Toyooka City 2017/9/4 Sunny 0.5 10 86.6 Sand/Gravel K-40 520 16 590 17 Pb-212 25 2.3 Pb-214 15 2.5 Tl-208 22 3.6 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Water area Location Municipality Date length content Property Measured value Detection limit Measured value Detection limit (m) Radionuclides (cm) (%) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 13 4.1 Bi-214 8.0 2.7 K-40 540 15 75 Yamato River Fujii Oji Town 2017/9/5 Cloudy 0.5 10 79.5 Sand 570 16 Pb-212 13 2.2 Pb-214 7.2 2.4 Nara Tl-208 12 3.1 Ac-228 23 5.0 Prefecture Bi-212 20 20 Bi-214 10 3.0 76 Kinokawa River Okura Bridge Gojo City 2017/9/6 Cloudy 2.9 10 74.4 Sand K-40 480 15 540 17 Pb-212 21 2.4 Pb-214 15 2.8 Tl-208 18 4.0 Ac-228 53 7.3 Bi-212 40 29 Bi-214 23 5.0 77 Kinokawa River Shinrokkaizeki Weir Wakayama City 2017/9/21 Sunny 3.0 10 43.3 Silt K-40 590 23 850 19 Pb-212 45 3.6 Pb-214 28 4.1 Wakayama Tl-208 41 5.5 Ac-228 36 5.0 Prefecture Bi-212 48 16 Bi-214 19 3.2 K-40 610 15 78 Kumano River Kumano-ohashi Bridge Shingu City 2017/10/3 Cloudy 4.0 10 85.2 Gravel 740 17 Pb-212 41 2.7 Pb-214 21 3.1 Ra-226 37 28 Tl-208 33 3.9 Ac-228 18 5.8 Bi-214 17 2.9 K-40 610 18 Tottori Rivers 79 Sendai River Gyotoku Tottori City 2017/8/29 Cloudy 1.9 10 84.7 Sand Pb-212 26 2.4 710 18 Prefecture Pb-214 18 2.8 Ra-226 33 27 Tl-208 21 4.0 Ac-228 44 6.6 Bi-212 54 21 Bi-214 22 3.5 80 Hiikawa River Kandatsu Bridge Izumo City 2017/8/31 Sunny 0.4 10 82.6 Sand K-40 840 15 990 17 Pb-212 53 3.1 Pb-214 25 3.4 Shimane Tl-208 43 5.1 Prefecture Ac-228 28 5.2 Bi-212 27 23 Bi-214 17 3.5 81 Gonokawa River Sakurae-ohashi Bridge Gotsu City 2017/9/1 Sunny 3.5 10 79.0 Sand K-40 740 19 900 18 Pb-212 28 2.6 Pb-214 23 3.2 Tl-208 22 4.6 Ac-228 19 5.3 Bi-214 12 2.8 K-40 570 16 82 Asahi River Otoite Weir Okayama City 2017/8/28 Sunny 0.8 10 83.8 Sand 650 17 Pb-212 16 2.4 Pb-214 14 2.8 Okayama Tl-208 12 3.6 Ac-228 19 6.0 Prefecture Bi-212 28 20 Bi-214 15 3.3 83 Takahashi River Kasumi Bridge Kurashiki City 2017/8/25 Sunny 2.7 10 78.6 Sand K-40 850 16 960 17 Pb-212 23 2.7 Pb-214 19 3.0 Tl-208 18 4.5 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Water area Location Municipality Date length content Property Measured value Detection limit Measured value Detection limit (m) Radionuclides (cm) (%) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 55 7.0 Bi-212 56 30 Water purification plant intake Bi-214 35 4.2 84 Ota River Hiroshima City 2017/8/22 Sunny 1.5 10 58.2 Silt K-40 870 23 1,200 18 in Hesaka Pb-212 54 3.7 Hiroshima Pb-214 37 4.3 Tl-208 52 5.7 Prefecture Ac-228 15 6.2 Bi-214 11 2.9 K-40 1000 16 85 Ashida River Kominomi Bridge Fukuyama City 2017/8/21 Sunny 1.2 10 81.1 Sand 1,000 17 Pb-212 15 2.5 Pb-214 13 2.9 Tl-208 15 3.7 Ac-228 22 4.9 Bi-212 29 16 Water purification plant intake Bi-214 20 2.8 86 Nishiki River Iwakuni City 2017/8/24 Sunny 5.5 10 78.3 Sand K-40 670 15 770 17 for the city Pb-212 29 2.6 Pb-214 22 3.1 Yamaguchi Tl-208 27 4.4 Prefecture Ac-228 32 7.3 Bi-212 45 21 Bi-214 25 4.1 87 Kotogawa River Suenobu Bridge Ube City 2017/8/23 Sunny 3.4 10 73.2 Sand 1,200 19 K-40 1100 18 Pb-212 37 3.3 Pb-214 26 3.9 Tl-208 35 4.9 Ac-228 19 4.9 Bi-212 21 16 Bi-214 12 2.9 88 Rivers Yoshino River Takase Bridge Ishii Town 2017/9/13 Sunny 4.9 10 75.7 Sand K-40 350 15 430 18 Pb-212 20 2.2 Pb-214 13 2.7 Tokushima Tl-208 16 3.8 Prefecture Ac-228 21 4.2 Bi-212 22 18 Bi-214 16 2.9 89 Nakagawa River Nakagawa Bridge Anan City 2017/9/15 Cloudy 4.5 10 81.5 Sand K-40 450 15 470 17 Pb-212 24 2.4 Pb-214 18 2.6 Tl-208 19 3.6 Ac-228 25 7.9 Bi-214 14 4.4 Kagawa K-40 790 16 90 Dokigawa River Marugame Bridge Marugame City 2017/9/11 Sunny 0.4 10 75.9 Sand Pb-212 29 3.4 950 18 Prefecture Pb-214 19 3.9 Ra-226 46 39 Tl-208 28 4.9 Ac-228 29 4.2 Bi-212 39 15 Bi-214 18 2.3 91 Shigenobu River Deai Bridge Matsuyama City 2017/9/5 Light rain 0.4 10 89.2 Gravel K-40 690 13 890 19 Pb-212 31 1.9 Ehime Pb-214 19 2.2 Tl-208 28 3.4 Prefecture Ac-228 9.3 5.3 Bi-214 7.6 3.1 K-40 170 16 92 Hijikawa River Hijikawa Bridge Ozu City 2017/9/6 Sunny 0.9 10 86.2 Gravel 220 16 Pb-212 11 2.0 Pb-214 7.2 2.6 Tl-208 9.9 3.5 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Water area Location Municipality Date length content Property Measured value Detection limit Measured value Detection limit (m) Radionuclides (cm) (%) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 15 3.5 Bi-212 17 14 Bi-214 13 2.1 93 Kagami River Kachuzeki Weir Kochi City 2017/9/8 Sunny 2.8 10 86.4 Gravel K-40 340 12 390 16 Pb-212 17 1.5 Kochi Pb-214 13 1.8 Tl-208 16 2.4 Prefecture Ac-228 10 2.6 Bi-214 8.5 1.8 K-40 220 11 94 Niyodo River Hatazeki Weir (1) Center of flow Ino Town 2017/9/7 Sunny 0.5 10 85.7 Sand 200 17 Pb-212 13 1.3 Pb-214 12 1.6 Tl-208 10 2.2 Ac-228 21 5.2 Bi-214 8.1 3.2 K-40 730 17 95 Onga River Hinode Bridge Nogata City 2017/8/21 Cloudy 1.3 10 79.3 Sand 700 16 Pb-212 19 2.4 Pb-214 10 2.8 Tl-208 13 4.1 Ac-228 100 7.1 Bi-212 110 32 Bi-214 24 4.3 96 Fukuoka Nakagawa River Shiobara Bridge Fukuoka City 2017/8/24 Sunny 1.3 10 63.2 Sand K-40 750 21 1,000 18 Prefecture Pb-212 110 3.9 Pb-214 24 4.4 Tl-208 100 5.7 Ac-228 23 6.1 Bi-212 24 20 Bi-214 20 3.5 97 Chikugo River Senoshita Kurume City 2017/8/23 Sunny 5.9 10 65.6 Sand K-40 490 17 590 19 Pb-212 26 2.8 Pb-214 20 3.4 Tl-208 26 4.4 Rivers Ac-228 18 5.1 Bi-214 11 2.9 Saga K-40 570 16 98 Kasegawa River Kasebashi Bridge Saga City 2017/8/28 Sunny 5.0 10 75.8 Sand 580 15 Prefecture Pb-212 19 2.3 Pb-214 9.3 2.5 Tl-208 18 3.5 Ac-228 24 7.0 Bi-212 36 27 Bi-214 18 4.2 99 Honmyogawa River In front of Tenma Park Isahaya City 2017/8/29 Sunny 1.2 10 70.2 Sand K-40 480 20 560 18 Pb-212 35 3.3 Nagasaki Pb-214 19 3.9 Tl-208 31 5.3 Prefecture Ac-228 16 5.8 Bi-214 12 3.2 K-40 480 16 100 Urakami River Ohashizeki Weir Nagasaki City 2017/8/30 Sunny 1.0 10 80.0 Sand 520 18 Pb-212 14 2.8 Pb-214 9.2 3.4 Tl-208 14 4.0 Ac-228 35 8.2 Bi-214 21 5.0 K-40 650 24 101 Kikuchi River Shiroishi Nagomi Town 2017/8/31 Sunny 7.6 10 56.8 Silt Pb-212 32 3.8 810 18 Pb-214 22 4.2 Ra-226 54 43 Kumamoto Tl-208 29 6.2 Prefecture Ac-228 20 6.0 Bi-212 23 21 Bi-214 16 3.2 102 Midori River Uesugizeki Weir Kumamoto City 2017/9/1 Sunny 1.3 10 84.3 Sand K-40 430 19 540 16 Pb-212 20 2.7 Pb-214 15 3.2 Tl-208 14 4.6 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Sediment)

Sampling location General items Sediment Water Sampling Sample sediment Detected γ-ray emitting radionuclides Total β radioactivity No. Prefecture Property Weather depth Remarks Water area Location Municipality Date length content Property Measured value Detection limit Measured value Detection limit (m) Radionuclides (cm) (%) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) (Bq/kg-dry) Ac-228 16 6.4 Bi-214 11 3.4 K-40 400 18 103 Oita River Funai-ohashi Bridge Oita City 2017/9/15 Cloudy 1.8 10 81.7 Sand 500 17 Pb-212 21 2.8 Pb-214 15 3.3 Oita Tl-208 16 4.8 Prefecture Ac-228 24 7.0 Bi-214 16 4.4 K-40 550 18 104 Ono River Shirataki Bridge Oita City 2017/9/12 Cloudy 0.9 10 73.0 Sand 620 16 Pb-212 27 3.2 Pb-214 20 4.0 Tl-208 22 5.0 Ac-228 26 7.6 Bi-212 29 25 Bi-214 18 3.8 K-40 560 20 105 Gokase River Miwa Nobeoka City 2017/9/13 Cloudy 1.4 10 84.8 Sand 670 18 Pb-212 35 3.2 Pb-214 24 4.1 Miyazaki Ra-226 51 33 Prefecture Tl-208 24 5.1 Ac-228 29 7.4 Bi-214 19 4.5 K-40 540 22 106 Oyodo River Shinaioi Bridge Miyazaki City 2017/9/8 Sunny 1.5 10 63.2 Sand 630 19 Pb-212 36 3.7 Pb-214 21 4.0 Rivers Tl-208 27 5.3 Ac-228 11 5.2 Bi-214 10 3.0 K-40 230 15 107 Kotsuki River Iwasaki Bridge Kagoshima City 2017/9/5 Sunny 1.0 10 82.2 Sand 320 16 Pb-212 12 2.3 Pb-214 9.2 2.8 Kagoshima Tl-208 13 3.8 Prefecture Ac-228 20 6.4 Bi-214 10 3.1 K-40 340 17 108 Kimotsuki River Matase Bridge Kanoya City 2017/9/6 Sunny 1.1 10 69.3 Sand 450 17 Pb-212 19 3.0 Pb-214 14 3.3 Tl-208 16 4.1 Ac-228 38 5.1 Bi-212 38 18 Bi-214 17 3.2 109 Genka River Water intake Nago City 2017/9/22 Sunny 0.4 10 78.7 Sand K-40 520 15 640 18 Pb-212 33 2.4 Okinawa Pb-214 19 3.0 Tl-208 25 4.0 Prefecture Ac-228 17 5.5 Bi-214 13 3.4 K-40 230 17 110 Miyara River Omoto water intake Ishigaki City 2017/9/20 Sunny 1.6 10 74.6 Sand 300 18 Pb-212 20 2.8 Pb-214 17 3.4 Tl-208 17 4.8 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

Ac-228 14 13 K-40 240 110 Bi-214 14 7.0 - - - Intake at the Aikoku water K-40 390 62 - - - 5 Hokkaido Kushiro River purification plant in Kushiro City 2017/8/28 Sunny Loamy 0.04 Loamy 0.03 Rivers Prefecture Kushiro City Pb-212 18 4.3 - - - Pb-214 14 7.1 - - - Tl-208 16 9.9 - - - Ac-228 17 16 Ac-228 16 13 Bi-214 10 8.8 Bi-214 12 8.5 K-40 440 76 K-40 410 67 6 Tokachi River Nantai Bridge Obihiro City 2017/8/28 Sunny Sandy 0.06 Sandy 0.05 Pb-212 24 5.5 Pb-212 20 4.9 Pb-214 15 7.2 Pb-214 13 6.9 Tl-208 24 10 Tl-208 12 9.4 Ac-228 30 15 Ac-228 28 15 Bi-214 16 7.9 Bi-214 18 8.5 Sarugawa Bridge K-40 440 65 K-40 420 72 7 Sarugawa River Hidaka Town 2017/10/6 Sunny Loamy 0.05 Loamy 0.03 (Tomigawa) Pb-212 25 5.0 Pb-212 26 5.4 Pb-214 19 7.3 Pb-214 19 7.4 Tl-208 20 10 Tl-208 24 10 Ac-228 17 13 Bi-214 9.5 8.4

Bi-214 11 7.3 K-40 260 71 Mitsumoribashi Bridge K-40 240 69 Pb-212 15 5.5 8 Matsukura River (Before the confluence with Hakodate City 2017/8/30 Sunny Sandy 0.03 Sandy 0.03 Torasawa River) Pb-212 12 5.2 Pb-214 9.4 7.4 Pb-214 12 6.9 Tl-208 14 10 Tl-208 12 9.4 - - - Ac-228 33 20 Ac-228 25 16 K-40 510 88 Bi-214 17 9.7 Intake at the Kitahiyama Shiribeshi-toshibetsu Pb-212 28 6.4 K-40 500 78 9 simple water plant in Setana Town 2017/8/30 Sunny Loamy 0.06 Loamy 0.07 River Kitahiyama Town Pb-214 27 8.2 Pb-212 32 5.7 Tl-208 20 15 Pb-214 17 8.1 - - - Tl-208 23 12 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

- - - Cs-137 14 5.4

(No sampling (No sampling Unable to collect samples on 13 Iwate Heigawa River Miyako Bridge Miyako City 2017/9/9 Sunny - - - 0.05 - - - 0.06 both riverbanks due to being Prefecture conducted) conducted) concrete-covered.

Bi-214 16 8.9 K-40 380 97 K-40 430 76 Pb-212 26 7.0

Pb-212 19 6.0 Pb-214 18 10 14 Kitakami River Chitose Bridge Ichinoseki City 2017/9/11 Cloudy Loamy 0.05 Loamy 0.05 Pb-214 13 8.6 Tl-208 24 14 Tl-208 22 12 Cs-134 8.9 4.9 Cs-137 22 4.0 Cs-137 67 4.8 Rivers Ac-228 16 15 Ac-228 21 16 Bi-214 14 9.7 Bi-214 15 10 K-40 360 66 K-40 500 74

Iwanuma Pb-212 22 5.8 Pb-212 27 5.9 15 Abukuma River Iwanuma City 2017/8/24 Rain Sandy 0.06 Loamy 0.09 (Abukuma Bridge) Pb-214 10 9.8 Pb-214 21 8.3 Tl-208 15 13 Tl-208 28 12 Miyagi Cs-134 22 4.8 Cs-134 17 4.0 Prefecture Cs-137 180 4.6 Cs-137 130 4.4 K-40 370 89 Bi-214 9.1 7.8 Pb-212 17 6.5 K-40 330 73 Pb-214 9.8 9.2 Pb-212 12 5.4 16 Natori River Yuriage-ohashi Bridge Natori City 2017/9/8 Sunny Loamy 0.03 Sandy 0.05 Tl-208 19 12 Pb-214 15 7.4 Cs-134 10 4.5 Cs-134 11 3.3 Cs-137 75 5.3 Cs-137 78 4.4 Ac-228 24 19 Bi-214 24 10 K-40 480 94 (No sampling Unable to collect samples on 17 Yoneshiro River Noshiro Bridge Noshiro City 2017/9/5 Sunny Loamy Pb-212 35 6.3 0.05 - - - 0.03 the right riverbank due to conducted) Pb-214 21 9.2 being a cliff. Tl-208 30 12 Akita Cs-137 7.1 4.2 Prefecture Ac-228 27 18 Ac-228 28 17

Bi-214 16 11 K-40 440 71 K-40 470 87 Pb-212 24 5.6 18 Omono River Kurose Bridge Akita City 2017/9/6 Sunny Loamy Pb-212 22 6.3 0.04 Loamy Pb-214 22 8.2 0.05 Pb-214 25 9.0 Tl-208 19 13 Tl-208 21 13 - - - Cs-137 17 6.1 - - - * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

- - - Cs-137 1500 9.1 Ac-228 45 21 Ac-228 42 19 Bi-214 23 14 Bi-214 14 13 K-40 590 100 K-40 530 88 Pb-212 49 8.8 Pb-212 48 8.0 23 Kujigawa River Takachihara Bridge Yamatsuri Town 2017/9/5 Sunny Loamy 0.10 Loamy 0.09 Pb-214 32 13 Pb-214 24 11 Tl-208 42 15 Tl-208 50 16 Cs-134 30 5.8 Cs-134 35 5.0 Cs-137 230 6.2 Cs-137 250 5.7 Ac-228 16 11 Bi-214 8.2 7.6 K-40 330 56 24 Lake Lake Kasumigaura Center Miho Village 2017/9/6 Rain Sandy Pb-212 24 4.9 0.08 - - - - - Tl-208 16 9.5 Cs-134 15 3.2 Ibaraki Cs-137 120 3.6 Prefecture Ac-228 29 18 Ac-228 24 20 K-40 460 77 Bi-214 23 10 Pb-212 29 6.3 K-40 500 88 25 River Kokai River Fumimaki Bridge Toride City 2017/10/2 Cloudy Loamy 0.06 Loamy 0.07 Pb-214 13 11 Pb-212 33 6.3 Cs-134 11 5.1 Pb-214 15 9.3 Cs-137 100 5.3 Tl-208 25 15 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

Sampling location Left bank Right bank Sampling Detected γ-ray emitting radionuclides Detected γ-ray emitting radionuclides No. Prefecture Property Weather Ambient Ambient Remarks Water area Location Municipality Date Property Measured value Detection limit dose rate Property Measured value Detection limit dose rate Radionuclides Radionuclides (Bq/kg-dry) (Bq/kg-dry) (μSv/h) (Bq/kg-dry) (Bq/kg-dry) (μSv/h) Ac-228 25 17 Ac-228 27 14 Bi-214 14 11 Bi-214 18 8.2 K-40 440 74 K-40 430 65 Nakagawa Pb-212 26 6.9 Pb-212 31 5.2 26 Nakagawa River Shinnaka Bridge 2017/9/8 Sunny Sandy 0.07 Sandy 0.05 Town Pb-214 16 11 Pb-214 11 7.9 Tl-208 15 13 Tl-208 28 10 Cs-134 38 5.0 Cs-134 5.9 3.5 Tochigi Cs-137 290 5.1 Cs-137 34 3.7 Prefecture Ac-228 34 13 Ac-228 26 22 Bi-214 14 8.4 Bi-214 16 14 K-40 640 49 K-40 520 82 Kinugawa Bridge Utsunomiya Pb-212 31 4.8 Pb-212 34 8.3 27 Kinugawa River 2017/9/29 Sunny Sandy 0.07 Loamy 0.08 (Hoshakuji Temple) City Pb-214 19 7.1 Pb-214 20 13 Tl-208 26 9.5 Tl-208 31 18 Cs-137 7.0 3.3 Cs-134 40 6.5 - - - Cs-137 340 6.0 K-40 350 86 Ac-228 23 15 Chiyoda Town Pb-212 23 7.5 Bi-214 11 10 /Gyoda City Pb-214 18 10 K-40 340 71 28 Tonegawa River Toneozeki Weir 2017/8/29 Sunny Loamy 0.04 Loamy 0.04 (Saitama Tl-208 22 16 Pb-212 22 5.4 Prefecture) Cs-134 21 5.5 Tl-208 13 12 Cs-137 140 6.1 Cs-137 30 4.5 Gunma Ac-228 25 21 Ac-228 32 18 Prefecture K-40 190 100 Bi-214 27 12 Pb-212 23 7.6 K-40 670 94 Tatebayashi Pb-214 10 10 Pb-212 36 7.9 29 Rivers Watarase River Watarase-ohashi Bridge 2017/8/29 Sunny Loamy 0.04 Loamy 0.06 City Tl-208 24 14 Pb-214 16 11 Cs-137 12 5.3 Tl-208 34 15 - - - Cs-134 14 4.6 - - - Cs-137 110 4.8 Ac-228 20 14 Ac-228 37 20 K-40 270 75 Bi-214 20 13 Pb-212 21 5.7 K-40 520 99 Pb-214 12 7.8 Pb-212 41 7.8 30 Kugebashi Bridge Kumagaya City 2017/9/7 Cloudy Loamy 0.05 Loamy 0.06 Tl-208 20 9.6 Pb-214 24 11 Cs-137 20 4.2 Tl-208 25 14 - - - Cs-134 17 4.8 - - - Cs-137 130 5.5 Arakawa River Ac-228 42 15 Ac-228 37 17 Bi-214 17 12 Bi-214 18 9.9 Saitama K-40 410 97 K-40 550 84 Prefecture Saitama City Pb-212 30 6.5 Pb-212 32 6.9 31 Akigase Intake Weir 2017/9/8 Sunny Loamy 0.05 Loamy 0.05 /Shiki City Pb-214 13 11 Pb-214 17 9.6 Tl-208 22 14 Tl-208 29 14 Cs-134 12 5.0 Cs-137 20 4.7 Cs-137 96 4.7 - - - Ac-228 21 16 K-40 430 88 Nagareyama K-40 400 92 Pb-212 23 9.5 City (Chiba Pb-212 15 7.6 Tl-208 19 17 32 Edogawa River Nagareyama Bridge 2017/8/28 Sunny Loamy 0.06 Loamy 0.09 Prefecture) Tl-208 16 15 Cs-134 75 6.3 /Misato City Cs-134 23 5.0 Cs-137 610 6.5 Cs-137 160 5.2 - - - * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

Cs-137 1000 8.9 Ac-228 17 16 Ac-228 19 17 K-40 390 77 K-40 420 85 Pb-212 18 9.5 Pb-212 22 6.5 36 Edogawa River Shinkatsushika Bridge Katsushika City 2017/8/29 Sunny Loamy Cs-134 100 6.4 0.08 Loamy Pb-214 15 10 0.06 Cs-137 780 7.0 Tl-208 21 13 - - - Cs-134 7.4 4.9 - - - Cs-137 77 5.4 Ac-228 38 16 Ac-228 37 17

Bi-214 26 11 Bi-214 19 8.7 K-40 690 74 K-40 700 59 Haijima raw water supply Pb-212 48 6.3 Pb-212 37 5.2 37 Tamagawa River Akishima City 2017/8/23 Sunny Loamy 0.07 Sandy 0.06 Tokyo point Pb-214 23 9.7 Pb-214 26 7.1 Metropolis Tl-208 41 13 Tl-208 30 9.8 Cs-134 10 4.5 Cs-137 8.8 3.5 Cs-137 70 5.0 - - - Unable to collect samples on Chuo City (No sampling (No sampling 38 Sumida River Ryogoku Bridge 2017/8/25 Sunny - - - 0.06 - - - 0.06 both riverbanks due to being /Sumida City conducted) conducted) concrete-covered. Rivers Ac-228 27 17 Ac-228 26 18 K-40 370 83 K-40 400 73 Koto City Pb-212 25 8.4 Pb-212 22 7.6 39 Arakawa River Kasai Bridge 2017/9/11 Sunny Sandy 0.08 Loamy 0.06 /Edogawa City Tl-208 18 17 Tl-208 21 16 Cs-134 58 6.8 Cs-134 39 5.4 Cs-137 470 5.9 Cs-137 300 5.9

(No sampling (No sampling Unable to collect samples on 40 Tsurumi River Rinko Tsurumigawa Bridge Yokohama City 2017/9/13 Sunny - - - 0.05 - - - 0.04 both riverbanks due to being conducted) conducted) concrete-covered.

Bi-214 10 8.1 K-40 310 76 Sample was collected at 80m K-40 290 62 Pb-212 11 5.7 downstream from the fixed Kanagawa 41 Sagami River Banyu Bridge Hiratsuka City Pb-212 14 4.6 Cs-137 18 4.1 point as the left riverbank Prefecture 2017/9/5 Sunny Loamy 0.04 Loamy 0.03 Pb-214 8.1 6.8 - - - became private land and Cs-137 5.5 3.6 - - - surrounded by a fence. K-40 120 92 K-40 260 87 Cs-137 24 4.4 Pb-212 6.8 6.2 42 Sakawa River Sakawa Bridge Odawara City 2017/9/4 Cloudy Loamy 0.02 Loamy 0.02 - - - Cs-134 5.4 3.7 - - - Cs-137 50 4.7 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

Niigata Cs-137 6.4 4.1 Cs-137 30 6.6 Prefecture Ac-228 34 18 Ac-228 46 22 Bi-214 25 11 Bi-214 27 14 K-40 590 91 K-40 630 110 Pb-212 37 7.2 Pb-212 49 8.2 44 Agano River Oun Bridge Niigata City 2017/9/5 Sunny Loamy 0.05 Loamy 0.07 Pb-214 23 9.3 Pb-214 25 12 Ra-226 72 69 Tl-208 50 16

Tl-208 37 14 Cs-134 11 5.8 - - - Cs-137 90 6.0 Ac-228 30 15 Ac-228 39 17 Bi-214 27 8.3 Bi-214 24 10 Toyama K-40 680 65 K-40 630 78 45 Jinzu River Hagiura Bridge Toyama City 2017/9/15 Sunny Sandy 0.07 Sandy 0.06 Prefecture Pb-212 33 5.0 Pb-212 38 6.6 Pb-214 16 7.9 Pb-214 24 9.5 Tl-208 22 11 Tl-208 32 13 Ac-228 34 16 Ac-228 34 19 Bi-214 26 8.5 Bi-214 26 9.5 K-40 590 80 K-40 620 83 46 Rivers Saigawa River Okuwa Bridge Kanazawa City 2017/9/14 Sunny Sandy 0.06 Sandy 0.07 Pb-212 37 6.3 Pb-212 38 6.5 Pb-214 19 9.5 Pb-214 26 8.2 Tl-208 27 13 Tl-208 31 11 - - - Cs-137 5.1 4.3 Ishikawa Prefecture Ac-228 24 17 Ac-228 51 18 Bi-214 22 8.2 Bi-214 35 11 K-40 890 69 K-40 730 77 Pb-212 36 5.3 Pb-212 45 6.6 47 Tedori River Hakusangoguchi Dike Hakusan City 2017/9/16 Sunny Loamy 0.08 Loamy 0.08 Pb-214 16 8.3 Pb-214 30 8.8 Tl-208 28 12 Ra-226 76 64 - - - Tl-208 32 13 - - - Cs-137 22 4.5 Ac-228 35 18 Ac-228 36 14 Bi-214 22 11 Bi-214 22 7.7 K-40 610 88 K-40 590 70 水質：海水の影響があり, 48 Kuzuryu River Fuseda Bridge Fukui City 2017/9/12 Cloudy Loamy 0.06 Loamy 0.06 Pb-212 37 6.8 Pb-212 35 5.6 マリネリ容器で測定 Pb-214 20 9.3 Pb-214 23 7.9 Tl-208 26 13 Tl-208 21 11 Fukui Prefecture Ac-228 43 17 Ac-228 38 14 Bi-214 21 9.8 Bi-212 74 51 K-40 640 74 Bi-214 18 8.8 49 Kitagawa River Takatsuka Bridge Obama City 2017/9/11 Cloudy Sandy Pb-212 47 5.9 0.07 Sandy K-40 650 67 0.06 Pb-214 24 9.0 Pb-212 43 5.5 Tl-208 29 13 Pb-214 20 8.3 - - - Tl-208 39 11

* This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

Cs-134 9.4 4.9 - - - Yamanashi Cs-137 41 5.9 - - - Prefecture Bi-214 13 13 Ac-228 29 15 K-40 320 88 Bi-214 21 8.4 Pb-212 29 6.5 K-40 520 66 51 Fujikawa River Nanbu Bridge Nanbu Town 2017/8/30 Sunny Loamy Pb-214 14 10 0.05 Loamy Pb-212 26 5.4 0.06 Tl-208 18 14 Pb-214 15 8.6 Cs-137 15 5.1 Tl-208 21 12 - - - Cs-137 9.7 4.5 Ac-228 52 17 Ac-228 38 17 Bi-214 18 14 Bi-214 23 12 K-40 550 95 K-40 590 88 Pb-212 44 8.3 Pb-212 39 6.8 52 Shinano River Ozeki Bridge Iiyama City 2017/9/23 Cloudy Loamy 0.07 Loamy 0.06 Pb-214 30 12 Pb-214 18 10 Tl-208 33 16 Tl-208 27 14 Cs-134 23 6.1 Cs-134 12 4.9 Cs-137 210 6.4 Cs-137 100 5.5 Ac-228 29 17 Ac-228 27 17 Bi-214 21 11 Bi-214 15 12 K-40 610 77 K-40 700 72 Rivers Pb-212 39 6.1 Pb-212 37 6.0 Nagano 53 Saigawa River Koichi Bridge Nagano City 2017/9/22 Cloudy Loamy 0.05 Sandy 0.07 Prefecture Pb-214 20 11 Pb-214 21 8.9 Ra-226 63 57.0 Tl-208 29 12

Tl-208 32 12 Cs-134 6.3 4.1 Cs-134 6.4 5.1 Cs-137 58 4.4 Cs-137 50 4.7 - - - Ac-228 56 17 Ac-228 75 22 Bi-214 28 11 Bi-212 76 75 K-40 490 91 Bi-214 33 13 Pb-212 55 6.9 K-40 480 100 54 Tenryu River Tsutsuji Bridge Iida City 2017/9/25 Sunny Loamy 0.08 Loamy 0.09 Pb-214 27 9.5 Pb-212 77 7.7 Tl-208 37 14 Pb-214 42 11 - - - Tl-208 59 14 - - - Cs-137 10 5.3 Ac-228 29 18 Ac-228 44 23 Bi-214 14 9.3 Bi-214 31 10 K-40 760 65 K-40 620 88 Tokai-ohashi Bridge 55 Kisogawa River Kaizu City 2017/9/15 Sunny Loamy 0.07 Loamy 0.07 (Naruto) Pb-212 33 5.6 Pb-212 52 6.7 Pb-214 19 7.8 Pb-214 34 9.4 Tl-208 24 11 Tl-208 45 15 Gifu - - - Cs-137 6.3 5.3 Prefecture Ac-228 51 21 Ac-228 31 17 Bi-214 30 14 Bi-214 20 10 K-40 610 88 K-40 570 75 56 Nagara River Tokai-ohashi Bridge Kaizu City 2017/9/15 Sunny Loamy Pb-212 59 6.7 0.08 Loamy Pb-212 47 5.6 0.06 Pb-214 33 10 Pb-214 28 8.7 Tl-208 49 13 Ra-226 70 66 - - - Tl-208 40 11 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

K-40 180 83 K-40 180 71 57 Kanogawa River Kurose Bridge Numazu City 2017/9/26 Sunny Loamy 0.03 Loamy 0.03 Pb-212 10 5.2 Pb-212 7.1 5.1 Cs-137 9.4 4.9 Cs-137 11 3.6 Ac-228 27 18 Ac-228 33 15 Bi-214 13 9.7 Bi-214 20 9.0 K-40 640 81 K-40 470 72 Yaizu City 58 Oigawa River Fujimi Bridge 2017/9/27 Sunny Loamy Pb-212 37 6.2 0.07 Loamy Pb-212 34 5.9 0.07 /Yoshida Town Pb-214 21 8.5 Pb-214 21 8.0 Shizuoka Tl-208 19 12 Tl-208 26 11 Prefecture Cs-137 6.4 3.8 Cs-137 14 3.8 Ac-228 30 15 Ac-228 31 17 Bi-214 12 8.5 K-40 490 71 Iwata City K-40 550 61 Pb-212 25 5.6

59 Tenryu River Kaketsuka Bridge /Hamamatsu 2017/9/28 Cloudy Loamy Pb-212 24 4.9 0.06 Loamy Pb-214 18 8.7 0.05 City Pb-214 15 7.3 Tl-208 26 12 Tl-208 20 9.3 Cs-137 12 4.6 Cs-137 5.3 3.9 - - - Ac-228 66 21 Ac-228 40 21 Bi-214 41 14 Bi-214 32 12 K-40 640 100 K-40 760 96 60 Shonai River Mizuwake Bridge Nagoya City 2017/9/14 Sunny Loamy 0.07 Loamy 0.07 Pb-212 71 8.0 Pb-212 47 8.3 Pb-214 46 11 Pb-214 24 12 Tl-208 56 15 Tl-208 50 14 Ac-228 54 17 Ac-228 39 16 Bi-214 19 10 Bi-214 12 10 Rivers K-40 760 88 K-40 580 89 Okazaki City 61 Yahagi River Iwazutenjin Bridge 2017/9/12 Rain Loamy Pb-212 44 6.3 0.07 Loamy Pb-212 33 6.1 0.07 /Toyota City Aichi Pb-214 11 9.8 Pb-214 15 8.8 Prefecture Tl-208 36 13 Tl-208 26 12 - - - Cs-137 4.2 3.2 Ac-228 24 14 Ac-228 43 21 Bi-214 14 9.6 Bi-212 74 63 K-40 520 70 Bi-214 20 15 Pb-212 27 5.6 K-40 450 120 62 Toyogawa River Eshima Bridge Toyokawa City 2017/9/11 Sunny Loamy 0.06 Loamy 0.05 Pb-214 17 7.9 Pb-212 44 8.6 Tl-208 31 10 Pb-214 14 12 Cs-137 3.6 3.6 Tl-208 42 16 - - - Cs-137 17 6.2 Ac-228 97 25 Ac-228 52 17 Bi-212 130 87 Bi-214 30 10 Bi-214 54 13 K-40 730 74 63 Suzuka River Ogura Bridge Yokkaichi City 2017/9/19 Sunny Loamy K-40 640 100 0.09 Loamy Pb-212 64 60 0.08 Pb-212 110 8.0 Pb-214 35 8.6 Mie Pb-214 67 12 Tl-208 49 14 Tl-208 120 17 - - - Prefecture Ac-228 32 18 Ac-228 39 18 Bi-214 17 11 Bi-214 24 11 K-40 420 79 K-40 730 71 64 Miyakawa River Watarai Bridge Ise City 2017/9/26 Sunny Loamy 0.05 Loamy 0.06 Pb-212 32 7.1 Pb-212 40 6.2 Pb-214 14 8.8 Pb-214 26 8.3 Tl-208 35 13 Tl-208 45 11 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

Ac-228 43 20 Ac-228 110 19 Bi-214 17 12 Bi-212 120 64

K-40 470 80 Bi-214 48 9.8 Pb-212 39 6.5 K-40 1100 72 65 River Adogawa River Joan Bridge Takashima City 2017/8/29 Sunny Loamy 0.05 Loamy 0.12 Pb-214 29 9.4 Pb-212 120 6.9 Shiga Tl-208 34 14 Pb-214 56 9.0 Prefecture - - - Ra-226 92 64 - - - Tl-208 100 15 Ac-228 21 15 K-40 990 64 66 Lake Lake Biwako Karasakioki-Chuo - 2017/8/30 Cloudy Sandy Pb-212 22 5.0 0.07 - - - - - Pb-214 11 6.7 Tl-208 20 10 Ac-228 33 18 Ac-228 25 17 Bi-214 16 11 Bi-214 20 10 K-40 530 82 K-40 540 71 67 Yuragawa River Yuragawa Bridge Maizuru City 2017/9/1 Sunny Loamy 0.06 Loamy 0.05 Pb-212 31 6.6 Pb-212 32 5.9 Pb-214 23 8.4 Pb-214 17 8.5 Tl-208 31 14 Tl-208 32 12 Kyoto Prefecture Ac-228 47 20 Ac-228 43 17 Bi-212 73 69 Bi-214 14 11 Before the confluence of Bi-214 19 12 K-40 690 84 Oyamazaki 68 Katsura River three tributaries of 2017/8/31 Sunny Loamy K-40 620 100 0.06 Sandy Pb-212 41 6.1 0.05 Town Katsura River Pb-212 57 7.7 Pb-214 19 9.9 Pb-214 34 10 Tl-208 39 13 Tl-208 55 12 - - - Ac-228 70 19 Ac-228 73 20 Bi-212 82 66 Bi-212 80 72 Itami City Bi-214 37 12 Bi-214 42 10 69 Inagawa River Gunko Bridge (Hyogo 2017/9/8 Sunny Loamy K-40 930 74 0.10 Sandy K-40 1200 66 0.11 Prefecture) Pb-212 80 7.5 Pb-212 86 7.0 Pb-214 40 9.2 Pb-214 53 8.6 Tl-208 74 14 Tl-208 77 13 Rivers Ac-228 39 19 Ac-228 47 20

Bi-212 65 58 Bi-214 23 12 Osaka Bi-214 16 11 K-40 710 99 Sugaharashirokita-ohashi 70 Prefecture Yodogawa River Osaka City 2017/9/22 Cloudy Loamy K-40 700 90 0.07 Loamy Pb-212 43 7.3 0.08 Bridge Pb-212 40 6.7 Pb-214 20 11 Pb-214 19 9.7 Tl-208 42 14 Tl-208 31 12 - - - Ac-228 31 18 Ac-228 35 17 Bi-214 17 10 Bi-214 26 9.9 Tondabayashi K-40 720 69 K-40 630 76 71 Ishikawa River Takahashi 2017/9/11 Cloudy Loamy 0.08 Loamy 0.07 City Pb-212 47 5.7 Pb-212 36 6.3 Pb-214 22 7.2 Pb-214 22 8.4 Tl-208 38 12 Tl-208 32 13 Ac-228 35 18 Ac-228 38 16 Bi-214 18 11 Bi-214 12 9.9 K-40 710 83 K-40 620 78 Hyogo 72 Kakogawa River Kakogawa Bridge Kakogawa City 2017/9/5 Cloudy Loamy Pb-212 47 7.2 0.09 Loamy Pb-212 35 6.3 0.06 Prefecture Pb-214 31 9.4 Pb-214 16 8.5 Tl-208 41 12 Ra-226 76 63

- - - Tl-208 38 12

* This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

74 Maruyama River Kaminogo Bridge Toyooka City 2017/9/4 Sunny Loamy K-40 770 81 0.09 Sandy Pb-212 36 6.6 0.06 Pb-212 91 7.1 Pb-214 20 9.8 Pb-214 47 9.9 Tl-208 33 12 Tl-208 77 14 Cs-137 5.1 4.2 Ac-228 33 19 Ac-228 23 21 K-40 580 68 K-40 510 78 Pb-212 32 5.7 Pb-212 24 6.4 75 Yamato River Fujii Oji Town 2017/9/5 Cloudy Loamy 0.06 Loamy 0.05 Pb-214 16 8.2 Pb-214 20 9.0 Ra-226 67 55 - - - Nara Tl-208 32 12 - - - Prefecture Ac-228 36 19 Ac-228 22 15

Bi-214 20 11 Bi-214 10 8.2 K-40 600 90 K-40 560 64 76 Kinokawa River Okura Bridge Gojo City 2017/9/6 Cloudy Loamy 0.06 Sandy 0.06 Pb-212 46 6.6 Pb-212 26 5.4 Pb-214 25 9.9 Pb-214 13 7.0 Tl-208 34 14 Tl-208 20 9.1 Rivers Ac-228 34 16 Ac-228 41 16 Bi-214 21 8.6 Bi-214 20 9.5 K-40 550 68 K-40 640 69 77 Kinokawa River Shinrokkaizeki Weir Wakayama City 2017/9/21 Sunny Loamy 0.05 Loamy 0.07 Pb-212 33 5.8 Pb-212 39 5.5

Wakayama Pb-214 17 7.3 Pb-214 24 7.9 Prefecture Tl-208 29 11 Tl-208 33 14

(No sampling (No sampling Unable to collect samples on 78 Kumano River Kumano-ohashi Bridge Shingu City 2017/10/3 Cloudy - - - 0.07 - - - 0.07 both riverbanks due to no soil conducted) conducted) riverbed. Ac-228 39 18 Ac-228 65 19 Bi-214 20 12 Bi-212 83 62 K-40 800 95 Bi-214 23 12 Tottori 79 Sendai River Gyotoku Tottori City 2017/8/29 Cloudy Loamy 0.07 Sandy 0.08 Prefecture Pb-212 47 7.1 K-40 940 89 Pb-214 25 10 Pb-212 83 7.2 Tl-208 37 15 Pb-214 26 9.7

- - - Tl-208 77 14 Ac-228 34 19 Ac-228 38 17 Bi-214 21 10 Bi-214 15 9.9 K-40 770 84 K-40 800 82 80 Hiikawa River Kandatsu Bridge Izumo City 2017/8/31 Sunny Sandy 0.06 Sandy 0.06 Pb-212 38 6.3 Pb-212 40 6.6 Pb-214 15 9.5 Pb-214 18 8.4 Shimane Tl-208 33 12 Tl-208 32 12

Prefecture Ac-228 44 23 Ac-228 31 15 Bi-214 32 11 Bi-214 18 9.4 K-40 790 92 K-40 680 66 81 Gonokawa River Sakurae-ohashi Bridge Gotsu City 2017/9/1 Sunny Sandy 0.07 Sandy 0.06 Pb-212 52 7.8 Pb-212 38 5.6 Pb-214 39 10 Pb-214 21 7.9 Tl-208 49 15 Tl-208 27 12 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

Bi-214 27 11 K-40 1000 63 Water purification plant 84 Ota River Hiroshima City 2017/8/22 Sunny Loamy 0.07 Loamy 0.09 intake in Hesaka K-40 800 79 Pb-212 43 5.6 Pb-212 61 6.4 Pb-214 28 7.5 Pb-214 22 10 Tl-208 37 12 Hiroshima Tl-208 55 11 - - - Prefecture Ac-228 46 23 Ac-228 65 19 Bi-214 21 13 Bi-212 67 59

K-40 800 78 Bi-214 31 10 85 Ashida River Kominomi Bridge Fukuyama City 2017/8/21 Sunny Loamy Pb-212 49 6.8 0.07 Loamy K-40 670 70 0.07 Pb-214 28 8.8 Pb-212 59 6.3 Tl-208 46 14 Pb-214 28 9.1 Rivers - - - Tl-208 48 13 Ac-228 61 16 Ac-228 110 15 Bi-214 28 9.5 Bi-212 130 60 K-40 710 79 Bi-214 41 11 Water purification plant 86 Nishiki River Iwakuni City 2017/8/24 Sunny Loamy 0.09 Loamy 0.10 intake for the city Pb-212 60 6.3 K-40 910 68 Pb-214 32 8.8 Pb-212 120 6.6 Tl-208 44 12 Pb-214 46 9.0 Yamaguchi - - - Tl-208 91 14 Prefecture Ac-228 78 22 Ac-228 60 23 Bi-212 100 66 Bi-212 95 70 Bi-214 50 12 Bi-214 48 13 87 Kotogawa River Suenobu Bridge Ube City 2017/8/23 Sunny Loamy K-40 920 76 0.08 Loamy K-40 660 89 0.10 Pb-212 89 7.1 Pb-212 73 7.7 Pb-214 52 9.7 Pb-214 49 11 Tl-208 59 15 Tl-208 68 16

Ac-228 34 18 Ac-228 36 18 K-40 630 91 Bi-214 20 9.2 Pb-212 36 6.6 K-40 630 91 88 Yoshino River Takase Bridge Ishii Town 2017/9/13 Sunny Loamy 0.05 Loamy 0.07 Pb-214 27 9.2 Pb-212 42 6.5 Ra-226 72 69 Pb-214 15 10 Tl-208 33 12 Tl-208 32 13 Tokushima Prefecture Ac-228 41 16 Ac-228 33 18 Bi-214 22 11 Bi-214 23 9.3 K-40 600 78 K-40 600 69 89 Nakagawa River Nakagawa Bridge Anan City 2017/9/15 Cloudy Loamy Pb-212 34 6.3 0.05 Loamy Pb-212 43 5.6 0.07 Pb-214 22 8.8 Pb-214 21 8.0 Tl-208 33 12 Ra-226 73 59 - - - Tl-208 39 12

* This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

Tl-208 42 11 Tl-208 45 14 Ac-228 30 16 Ac-228 33 18 Bi-214 17 9.1 Bi-214 20 10 Matsuyama K-40 760 62 K-40 690 69 91 Shigenobu River Deai Bridge 2017/9/5 Light rain Sandy 0.08 Sandy 0.09 City Pb-212 41 5.6 Pb-212 34 5.6 Pb-214 19 7.1 Pb-214 18 8.9 Ehime Tl-208 37 11 Tl-208 28 12 Prefecture Ac-228 29 21 Ac-228 47 23 K-40 550 98 Bi-214 19 13

Pb-212 37 7.2 K-40 610 110 92 Hijikawa River Hijikawa Bridge Ozu City 2017/9/6 Sunny Sandy 0.03 Sandy 0.07 Pb-214 14 11 Pb-212 50 8.2 Tl-208 35 14 Pb-214 17 11 - - - Tl-208 49 17 Ac-228 54 17 Ac-228 35 18 Bi-212 74 61 Bi-214 26 10 Bi-214 25 11 K-40 440 72 93 Kagami River Kachuzeki Weir Kochi City 2017/9/8 Sunny Loamy K-40 450 71 0.04 Loamy Pb-212 40 6.0 0.06 Pb-212 53 7.0 Pb-214 22 8.6 Pb-214 34 8.8 Tl-208 44 13 Kochi Tl-208 38 13 - - - Prefecture Ac-228 36 20 Bi-214 14 11 Bi-214 16 10 K-40 490 96 Hatazeki Weir (1) K-40 570 99 Pb-212 36 7.0 94 Niyodo River Ino Town 2017/9/7 Sunny Sandy 0.06 Loamy 0.05 Rivers Center of flow Pb-212 33 7.4 Pb-214 14 11 Pb-214 25 9.4 Tl-208 16 15

Tl-208 32 13 - - - Ac-228 35 19 Ac-228 39 20 Bi-214 23 12 Bi-214 22 10 K-40 510 81 K-40 670 80 95 Onga River Hinode Bridge Nogata City 2017/8/21 Cloudy Loamy Pb-212 47 6.5 0.06 Loamy Pb-212 44 6.3 0.06 Pb-214 27 9.3 Pb-214 26 8.5 Ra-226 81 73 Tl-208 39 13 Tl-208 40 13 - - - Ac-228 59 19 Ac-228 110 18 Bi-214 14 11 Bi-212 110 61 Fukuoka K-40 840 68 Bi-214 17 11 96 Prefecture Nakagawa River Shiobara Bridge Fukuoka City 2017/8/24 Sunny Sandy Pb-212 73 6.4 0.07 Sandy K-40 860 69 0.07 Pb-214 20 7.9 Pb-212 110 6.6 Tl-208 59 12 Pb-214 27 8.1

- - - Tl-208 95 14 Ac-228 29 14 Ac-228 52 20 Bi-214 18 8.7 Bi-214 18 12 K-40 600 60 K-40 530 87 97 Chikugo River Senoshita Kurume City 2017/8/23 Sunny Sandy 0.05 Loamy 0.05 Pb-212 45 4.9 Pb-212 49 6.9 Pb-214 19 7.5 Pb-214 26 9.6 Tl-208 35 10 Tl-208 53 15

Ac-228 21 19 Ac-228 23 19 Bi-214 14 11 Bi-214 18 10 Saga K-40 620 86 K-40 570 94 98 Kasegawa River Kasebashi Bridge Saga City 2017/8/28 Sunny Loamy 0.05 Loamy 0.05 Prefecture Pb-212 32 5.9 Pb-212 29 7.1 Pb-214 17 9.1 Pb-214 18 9.6 Tl-208 26 11 Tl-208 21 14 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

Sampling location Left bank Right bank Sampling Detected γ-ray emitting radionuclides Detected γ-ray emitting radionuclides No. Prefecture Property Weather Ambient Ambient Remarks Water area Location Municipality Date Property Measured value Detection limit dose rate Property Measured value Detection limit dose rate Radionuclides Radionuclides (Bq/kg-dry) (Bq/kg-dry) (μSv/h) (Bq/kg-dry) (Bq/kg-dry) (μSv/h) Ac-228 32 17 Ac-228 34 19 Bi-214 18 10 K-40 290 86 K-40 360 74 Pb-212 34 6.3 99 Honmyogawa River In front of Tenma Park Isahaya City 2017/8/29 Sunny Loamy 0.06 Loamy 0.06 Pb-212 32 5.7 Pb-214 15 9.2 Nagasaki Pb-214 16 9.2 Tl-208 33 12 Prefecture Tl-208 26 12 - - - Bi-214 11 8.6 Ac-228 18 14 K-40 370 74 K-40 290 78 100 Urakami River Ohashizeki Weir Nagasaki City 2017/8/30 Sunny Loamy 0.05 Loamy 0.05 Pb-212 22 5.4 Pb-212 20 6.0 Tl-208 14 11 Pb-214 10 7.9 Ac-228 47 17 Ac-228 29 16 Bi-214 18 11 Bi-214 12 8.3 K-40 690 84 K-40 820 74 101 Kikuchi River Shiroishi Nagomi Town 2017/8/31 Sunny Loamy 0.07 Sandy 0.05 Pb-212 52 6.5 Pb-212 25 5.8 Pb-214 14 9.7 Pb-214 11 8.1 Tl-208 43 14 Tl-208 20 11 Kumamoto Ac-228 25 19 Ac-228 39 19 Prefecture Bi-214 20 10 Bi-214 31 10 K-40 540 65 K-40 480 84 102 Midori River Uesugizeki Weir Kumamoto City 2017/9/1 Sunny Loamy Pb-212 37 5.4 0.05 Loamy Pb-212 32 6.2 0.05 Pb-214 17 8.1 Pb-214 30 9.2 Tl-208 28 12 Ra-226 80 64 - - - Tl-208 35 12 Rivers Bi-214 12 11 Ac-228 30 17 K-40 420 94 Bi-214 19 9.9 Pb-212 23 6.7 K-40 520 86 103 Oita River Funai-ohashi Bridge Oita City 2017/9/15 Cloudy Loamy 0.05 Loamy 0.05 Tl-208 16 13 Pb-212 26 6.3 - - - Pb-214 18 9.1 Oita - - - Tl-208 31 11 Prefecture Bi-214 19 10 Ac-228 38 18 K-40 490 76 Bi-214 15 12 Pb-212 31 5.9 K-40 550 79 104 Ono River Shirataki Bridge Oita City 2017/9/12 Cloudy Loamy 0.06 Loamy 0.06 Pb-214 19 9.4 Pb-212 29 6.8 Tl-208 23 13 Pb-214 21 9.6 - - - Tl-208 29 12 Ac-228 33 20 Ac-228 40 13 Bi-214 20 11 Bi-214 25 9.4 K-40 690 70 K-40 660 77 105 Gokase River Miwa Nobeoka City 2017/9/13 Cloudy Loamy Pb-212 46 5.8 0.07 Loamy Pb-212 36 6.2 0.05 Pb-214 32 8.0 Pb-214 27 8.6 Miyazaki Ra-226 65 63 Tl-208 33 11 Tl-208 47 13 - - - Prefecture Ac-228 56 19 Ac-228 33 19 Bi-214 16 13 K-40 570 85 K-40 620 86 Pb-212 38 6.5 106 Oyodo River Shinaioi Bridge Miyazaki City 2017/9/8 Sunny Loamy 0.05 Loamy 0.06 Pb-212 47 6.9 Pb-214 27 10 Pb-214 19 10 Tl-208 31 14 Tl-208 32 16 - - - * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement in Public Water Areas (Surrounding Environment)

(No sampling (No sampling Unable to collect samples on 107 Kotsuki River Iwasaki Bridge Kagoshima City 2017/9/5 Sunny - - - 0.07 - - - 0.07 the right riverbank due to conducted) conducted) being concrete-covered.

Kagoshima Ac-228 30 26 Ac-228 30 22 Prefecture Bi-214 21 13 Bi-214 23 13

K-40 440 100 K-40 400 90 108 Kimotsuki River Matase Bridge Kanoya City 2017/9/6 Sunny Loamy 0.05 Loamy 0.05 Pb-212 44 7.9 Pb-212 35 7.2 Pb-214 25 10 Pb-214 26 9.8 Tl-208 43 16 Tl-208 31 16 Ac-228 41 16 Ac-228 37 19 Rivers Bi-214 21 10 Bi-214 19 10 K-40 610 68 K-40 480 80 109 Genka River Water intake Nago City 2017/9/22 Sunny Loamy 0.04 Loamy 0.04 Pb-212 38 5.4 Pb-212 38 6.3 Pb-214 20 9.1 Pb-214 19 9.0 Okinawa Tl-208 41 13 Tl-208 29 14 Prefecture Ac-228 49 17 Bi-214 19 9.8 Bi-214 32 11 K-40 390 75 K-40 610 80 Pb-212 29 5.5 110 Miyara River Omoto water intake Ishigaki City 2017/9/20 Sunny Loamy 0.06 Loamy 0.05 Pb-212 48 6.6 Pb-214 22 8.5 Pb-214 35 9.1 Tl-208 27 12 Tl-208 42 12 - - - * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement of Groundwater (Water)

Sampling location General items Water Detected γ-ray emitting radionuclides Total β radioactivity Sampling Electrical Ambient dose rate No. Prefecture Well depth Shallow well Transparency SS Turbidity Remarks Location Municipality Date conductivity Measured Detection Measured Detection (μSv/h) (m) or deep well (cm) (mg/L) (FNU) (mS/m) Radionuclides value limit value limit (Bq/L) (Bq/L) (Bq/L) (Bq/L)

1 Kitasanjonishi, Chuo Ward Sapporo City 70 Deep well 2017/8/22 >100 32.6 <1 <1 K-40 0.12 0.036 0.069 0.029 0.06 Hokkaido Prefecture 2 Nishi1senminami Naganuma Town 12 Shallow well 2017/8/23 >100 78.8 44 110 K-40 0.22 0.052 0.18 0.062 0.03 3 Shinmachi Aomori City 600 Unknown 2017/9/4 >100 19.0 <1 <1 - - - ND 0.027 0.06 Aomori Prefecture 4 Sakuracho Misawa City Unknown Deep well 2017/9/1 >100 36.1 <1 <1 K-40 0.058 0.045 0.073 0.029 0.04 Be-7 0.027 0.015 5 Motomiya Morioka City Unknown Shallow well 2017/8/29 >100 26.8 <1 <1 0.056 0.026 0.05 Iwate Prefecture K-40 0.049 0.029 6 Shimoezuriko Kitakami City 8 Shallow well 2017/8/29 >100 13.4 <1 <1 K-40 0.046 0.032 ND 0.026 0.06

7 Honcho, Aoba Ward Sendai City 250 Deep well 2017/8/25 >100 41.7 <1 <1 K-40 0.13 0.042 0.11 0.029 0.06 Miyagi Prefecture 8 Kitakamicho-onagawa Ishinomaki City Unknown Unknown 2017/8/28 >100 11.4 <1 <1 K-40 0.20 0.028 0.23 0.024 0.07 9 Niiyaji Daisen City 20-25 Shallow well 2017/9/6 >100 18.3 <1 <1 K-40 0.041 0.024 0.034 0.026 0.04 Akita Prefecture 10 Hirasawa Nihoka City 125 Deep well 2017/9/7 >100 19.6 <1 <1 K-40 0.095 0.025 0.064 0.027 0.06

11 Hatagomachi Yamagata City 150 Deep well 2017/8/24 >100 20.6 <1 <1 K-40 0.063 0.022 0.027 0.026 0.08 Yamagata Prefecture 12 Nitta Sagae City 100 Deep well 2017/8/23 13 34.0 6 14 K-40 0.22 0.039 0.20 0.028 0.09 13 Asahi Koriyama City 60 Unknown 2017/9/11 47 23.1 19 19 K-40 0.060 0.040 0.057 0.029 0.21 Fukushima Prefecture K-40 0.085 0.033 14 Isobe Souma City 6.4 Shallow well 2017/9/12 6 29.9 41 25 0.066 0.028 0.07 Pb-212 0.0044 0.0028 15 Kenkyugakuen Tsukuba City 120 Deep well 2017/9/8 >100 14.0 <1 <1 K-40 0.17 0.029 0.10 0.027 0.07 16 Ibaraki Prefecture Katakura Omitama City 50 Unknown 2017/9/7 >100 12.5 <1 <1 K-40 0.11 0.030 0.14 0.025 0.08

17 Ozutsumi Ibaraki Town 60 Deep well 2017/9/7 >100 151 <1 <1 K-40 0.27 0.031 0.25 0.13 0.08

18 Machida Shimotsuke City 130 Deep well 2017/9/29 >100 32.1 <1 <1 K-40 0.072 0.030 0.042 0.028 0.05

19 Tochigi Prefecture Kobyaku Nikkou City 7 Shallow well 2017/10/3 100 6.1 <1 <1 K-40 0.035 0.020 0.033 0.024 0.14 20 Tamachi Mooka City 10 Shallow well 2017/10/3 100 33.3 4 6 K-40 0.12 0.022 0.055 0.027 0.08 21 Shikishimacho Maebashi City 120 Deep well 2017/8/28 >100 29.5 <1 <1 K-40 0.092 0.031 0.071 0.029 0.05

22 Gunma Prefecture Manba Kanna Town 3.99 Shallow well 2017/8/24 >100 18.0 <1 <1 K-40 0.13 0.018 0.14 0.025 0.08

23 Minamiooshima Meiwa Town 220 Deep well 2017/8/28 >100 53.7 <1 <1 K-40 0.12 0.026 0.068 0.029 0.05

24 Mikura, Minuma Ward Saitama City 300 Deep well 2017/8/21 >100 17.4 <1 <1 K-40 0.082 0.029 0.052 0.027 0.05 25 Saitama Prefecture Shichizacho Koshigaya City 200 Deep well 2017/8/22 >100 23.8 <1 <1 K-40 0.058 0.031 0.085 0.025 0.06 26 Sugiyama Honjyou City 200 Deep well 2017/8/22 >100 44.4 <1 <1 K-40 0.080 0.025 0.056 0.028 0.06

27 Funato Kashiwa City 150 Unknown 2017/9/8 >100 20.9 1 <1 K-40 0.060 0.032 0.057 0.027 0.11

28 Chiba Prefecture Yamamoto Tateyama City 50 Unknown 2017/9/14 >100 47.2 <1 <1 K-40 0.19 0.034 0.15 0.028 0.04

29 Egawa Kisarazu City 60.2 Shallow well 2017/9/14 >100 32.9 9 6 K-40 0.20 0.018 0.16 0.028 0.05 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement of Groundwater (Water)

30 Kajinocho Koganei City 80 Unknown 2017/8/25 >100 19.5 <1 <1 K-40 0.029 0.023 ND 0.027 0.04 Tokyo Metropolis 31 Unazawa Okutama Town 3 Shallow well 2017/8/24 >100 21.0 <1 <1 K-40 0.33 0.018 0.30 0.025 0.07

32 Imaizumi Hadano City 22.7 Deep well 2017/9/5 >100 22.0 <1 <1 K-40 0.032 0.027 ND 0.027 0.04 Kanagawa Prefecture 33 Wadagahara Minamiashigara City 8.9 Deep well 2017/9/4 >100 19.5 <1 <1 K-40 0.064 0.039 0.044 0.027 0.03

34 Nagata, Chuo Ward Niigata City 6 Shallow well 2017/9/6 >100 79.3 <1 <1 K-40 0.39 0.037 0.36 0.030 0.09

35 Niigata Prefecture Kawauchicho Tookamachi City Unknown Deep well 2017/8/21 >100 17.0 <1 <1 K-40 0.027 0.025 0.034 0.026 0.05

36 Suzawa Itoigawa City Unknown Shallow well 2017/8/21 >100 20.2 <1 <1 K-40 0.055 0.020 0.041 0.028 0.03

37 Funahashikitamachi Toyama City 80 Unknown 2017/9/19 >100 23.7 <1 <1 K-40 0.066 0.026 0.030 0.028 0.09 Toyama Prefecture 38 HorikiriShin Kurobe City 50 Unknown 2017/9/15 >100 12.5 <1 <1 K-40 0.056 0.018 0.039 0.024 0.09

39 Kuramits u Hakusan City 120 Deep well 2017/9/13 >100 29.4 <1 <1 - - - 0.042 0.027 0.06 Ishikawa Prefecture 40 Daiwamachi Kanazawa City 120 Deep well 2017/9/14 >100 14.9 1 <1 K-40 0.025 0.019 ND 0.027 0.06

41 Ote Fukui City 120 Deep well 2017/9/12 >100 32.1 <1 <1 K-40 0.034 0.030 0.030 0.026 0.10 Fukui Prefecture 42 Mishimacho Tsuruga City 37 Deep well 2017/9/11 >100 16.6 <1 <1 K-40 0.045 0.019 0.037 0.026 0.09

43 Saijyoshinden Showa Town 85 Deep well 2017/8/30 >100 17.6 <1 <1 K-40 0.075 0.025 0.073 0.025 0.05 Yamanashi Prefecture 44 Shimoyama Minobu Town 30 Deep well 2017/8/31 >100 32.1 <1 <1 K-40 0.068 0.035 0.042 0.027 0.05

45 Tsurugamidoricho Nagano City 110 Deep well 2017/9/21 >100 45.6 <1 <1 K-40 0.13 0.035 0.099 0.029 0.05

Groundwater after 46 Nagano Prefecture Kuiseke Chikuma City 60 Deep well 2017/9/20 >100 24.3 <1 <1 K-40 0.10 0.027 0.071 0.048 0.06 chlorine treatment

47 Shimosuwamachi Shimosuwa Town 115 Deep well 2017/9/21 >100 21.9 <1 <1 K-40 0.19 0.033 0.15 0.051 0.06

48 Kanoshimizucho Gifu City 19.90 Shallow well 2017/9/21 >100 10.3 <1 <1 K-40 0.070 0.016 0.049 0.026 0.07

49 Gifu Prefecture Shimomakuwa Motosu City 120 Deep well 2017/9/21 >100 9.1 <1 <1 - - - ND 0.024 0.07

50 Ootacho Minokamo City 6.5 Shallow well 2017/9/13 >100 19.5 <1 <1 K-40 0.18 0.021 0.14 0.026 0.12

51 Hara Numazu City 200 Deep well 2017/9/26 >100 9.8 <1 <1 K-40 0.057 0.029 0.031 0.027 0.04

52 Shizuoka Prefecture Nakajima, Suruga Ward Shizuoka City 81.5 Deep well 2017/9/25 >100 18.7 <1 <1 - - - ND 0.025 0.06

53 Kawashiri Yoshida Town 90-100 Deep well 2017/9/27 >100 16.2 <1 <1 K-40 0.029 0.021 ND 0.026 0.06

54 Kawaharatori, Showa Ward Nagoya City 55 Deep well 2017/9/14 >100 7.1 3 1 K-40 0.16 0.038 0.14 0.026 0.08

55 Toriimatsucho Kasugai City 170 Deep well 2017/9/13 >100 14.1 23 31 K-40 0.11 0.033 0.11 0.025 0.06 Aichi Prefecture Ac-228 0.021 0.0082 56 Inomoto, Naganawacho Nisiho Ctiy 70 Deep well 2017/9/11 >100 46.6 2 1 K-40 0.19 0.044 0.18 0.029 0.07

Pb-214 0.0066 0.0044 * This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement of Groundwater (Water)

57 Inoucho Suzuka City 200 Deep well 2017/9/19 >100 10.5 2 4 K-40 0.13 0.038 0.10 0.027 0.06

58 Mie Prefecture Odamachishinden Iga City 8 Shallow well 2017/9/20 >100 16.7 <1 <1 K-40 0.11 0.026 0.11 0.027 0.08

59 Gokasyoura Minamiise Town 7.4 Shallow well 2017/9/19 >100 15.3 <1 <1 - - - 0.034 0.024 0.06

60 Miyakecho Moriyama City 20-30 Deep well 2017/8/30 >100 23.9 <1 <1 K-40 0.046 0.036 ND 0.027 0.09

61 Shiga Prefecture Arahari Rittou City Unknown Unknown 2017/8/28 >100 15.0 <1 <1 K-40 0.11 0.028 0.090 0.025 0.07

62 Tsudacho Oumihachiman City Unknown Unknown 2017/8/28 75 40.4 3 2 K-40 0.071 0.036 0.055 0.028 0.09

63 Toraishicho, Nakagyo Ward Kyoto City 80 Deep well 2017/8/31 >100 12.2 <1 <1 K-40 0.065 0.021 0.054 0.026 0.08 Kyoto Prefecture Ac-228 0.0049 0.0047 64 Yasakacho Kyoutango City 20 Unknown 2017/9/1 >100 16.8 2 3 0.049 0.025 0.09 K-40 0.042 0.028

65 Daisennakamachi, Sakai Ward Sakai City 181 Deep well 2017/9/12 >100 38.6 4 <1 K-40 0.50 0.040 0.40 0.028 0.08 Osaka Prefecture 66 Shyakudo Habikino City 168 Deep well 2017/9/11 >100 28.9 7 16 K-40 0.063 0.046 0.039 0.028 0.05

67 Kuchisakai Itami City 29.25 Shallow well 2017/9/12 >100 34.9 9 39 K-40 0.15 0.027 0.11 0.026 0.08

68 Hyogo Prefecture Saiwaicho Toyooka City 42.04 Deep well 2017/9/4 >100 60.4 3 4 K-40 0.43 0.037 0.38 0.029 0.07

69 Fukui Miki City 150 Deep well 2017/9/5 >100 11.1 <1 <1 K-40 0.085 0.033 0.059 0.027 0.08

70 Sakyo Nara City 82.5 Deep well 2017/9/5 >100 20.6 2 1 K-40 0.11 0.045 0.074 0.026 0.06 Nara Prefecture 71 Kawai Sakurai City 5.10 Unknown 2017/9/6 65 20.7 3 2 K-40 0.13 0.026 0.12 0.026 0.07

72 Takano Kinokawa City Unknown Unknown 2017/9/21 >100 26.2 <1 <1 - - - ND 0.028 0.05 Wakayama Prefecture 73 Sono Gobou City 4.70 Shallow well 2017/9/20 >100 20.8 <1 <1 K-40 0.17 0.024 0.10 0.025 0.08

74 Saiwaicho Tottori City 24.00 Deep well 2017/8/29 >100 68.4 <1 <1 K-40 0.16 0.030 0.12 0.030 0.08 Tottori Prefecture 75 Yatsuya Kurayoshi City 10 Shallow well 2017/8/30 >100 10.9 <1 <1 K-40 0.065 0.019 0.038 0.027 0.10 76 Nishikawatsucho Matsue City 100 Deep well 2017/8/31 >100 56.3 <1 <1 K-40 0.093 0.045 0.082 0.028 0.07

Shimane Prefecture Groundwater after 77 Enyacho Izumo City 53 Deep well 2017/9/1 >100 27.2 <1 <1 K-40 0.11 0.035 0.093 0.027 0.06 chlorine treatment

78 Fukui Kurashiki City 13.1 Shallow well 2017/8/25 >100 66.5 <1 <1 K-40 0.13 0.041 0.14 0.030 0.09 Okayama Prefecture 79 Hiruzenkamitokuyama Maniwa City 84 Deep well 2017/8/30 >100 6.5 <1 <1 K-40 0.067 0.032 0.049 0.024 0.07

80 Kamisenocho, Aki Ward Hiroshima City 30 Deep well 2017/8/22 >100 6.7 <1 <1 - - - 0.078 0.026 0.11 Hiroshima Prefecture 81 Mitsugichosaburoumaru Onomichi City 15 Shallow well 2017/8/21 >100 6.8 <1 <1 K-40 0.046 0.018 0.051 0.027 0.10

82 Ouchimihori Yamaguchi City Unknown Unknown 2017/8/24 >100 16.7 <1 <1 K-40 0.080 0.018 0.061 0.025 0.12 Yamaguchi Prefecture 83 Higashifukawa Nagato City 6 Shallow well 2017/8/23 >100 14.7 <1 <1 K-40 0.063 0.020 0.081 0.026 0.08

84 Fudohoncho Tokushima City 25.7 Deep well 2017/9/13 >100 16.6 <1 <1 K-40 0.045 0.018 ND 0.027 0.08 Tokushima Prefecture 85 Wakimachi Mima City 50 Deep well 2017/9/12 >100 19.5 <1 <1 K-40 0.057 0.023 0.045 0.025 0.06

* This preliminary report does not contain counting errors concerning activity concentrations.

Results of Measurement of Groundwater (Water)

Water which had the same water source was 86 Bancho Takamatsu City Unknown Shallow well 2017/9/12 >100 39.5 <1 <1 K-40 0.19 0.027 0.13 0.028 0.09 sampled at different place Kagawa Prefecture due to construction.

87 Shigekicho Kanonji City 2.57 Shallow well 2017/9/8 >100 31.1 <1 <1 K-40 0.12 0.023 0.12 0.028 0.08

88 Hiraimachi Matsuyama City 50 Deep well 2017/9/5 >100 45.5 2 2 K-40 0.069 0.027 0.063 0.028 0.09

89 Ehime Prefecture Kanbaikou Saijyou City 21.0 Deep well 2017/9/4 >100 8.2 <1 <1 K-40 0.016 0.016 ND 0.025 0.10

90 Katayama Imabari City 7.5 Shallow well 2017/9/4 >100 14.3 <1 <1 K-40 0.036 0.020 ND 0.027 0.08

91 Kerako Kochi City 8 Shallow well 2017/11/20 >100 15.9 <1 <1 K-40 0.048 0.019 0.028 0.024 0.05 Kochi Prefecture 92 Hondou Shimanto Town 4.68 Shallow well 2017/9/7 >100 8.2 <1 <1 K-40 0.064 0.017 0.047 0.026 0.06

93 Tanushimarumachiakinari Kurume City 30 Shallow well 2017/8/23 >100 24.9 <1 <1 K-40 0.18 0.032 0.087 0.028 0.05 Fukuoka Prefecture 94 Tougou Munakata City Unknown Shallow well 2017/8/22 >100 29.4 <1 <1 K-40 0.059 0.027 0.073 0.026 0.07

95 Yamatochoniiji Saga City 100 Deep well 2017/8/28 >100 17.2 <1 <1 - - - ND 0.027 0.05

Saga Prefecture Pa-234m 0.18 0.17 96 Sefurimachihirotaki Kanzaki City 85 Deep well 2017/8/22 >100 9.4 <1 <1 Th-234 0.053 0.046 0.24 0.030 0.06 U-235 0.0045 0.0044

97 Eidamachi Isahaya City 132 Deep well 2017/8/29 >100 21.4 <1 <1 K-40 0.14 0.030 0.093 0.025 0.05 Nagasaki Prefecture 98 Gounourachokatabarufure Iki City 71.05 Deep well 2017/8/25 >100 24.2 <1 <1 K-40 0.081 0.028 0.055 0.027 0.05

99 Suizenji, Chuo Ward Kumamoto City 55.5 Deep well 2017/9/1 >100 24.7 <1 <1 K-40 0.15 0.031 0.11 0.028 0.05

100 Kumamoto Prefecture Wataru Kikuchi City 152 Deep well 2017/8/31 >100 12.4 <1 <1 K-40 0.12 0.033 0.12 0.025 0.05

101 Ichinomiyamachimiyaji Aso City 108 Deep well 2017/9/4 >100 25.1 <1 <1 K-40 0.20 0.034 0.12 0.027 0.05

102 Kamioka Saiki City 35 Deep well 2017/9/11 >100 14.2 <1 <1 K-40 0.037 0.021 ND 0.026 0.05 Oita Prefecture 103 Enomoto, Miwa Bungotakada City 10.00 Shallow well 2017/9/11 >100 22.1 <1 <1 K-40 0.12 0.026 0.068 0.025 0.06

104 Minamiyokoichicho Miyakonojo City 130 Deep well 2017/9/7 >100 12.5 <1 <1 - - - ND 0.026 0.06

105 Miyazaki Prefecture Minaminishikata Kobayashi City Unknown Unknown 2017/9/7 >100 20.0 <1 <1 K-40 0.11 0.022 0.055 0.027 0.05

106 Marutanicho Miyakonojyou City 20 Shallow well 2017/9/7 >100 14.7 <1 <1 K-40 0.13 0.025 0.075 0.025 0.05

107 Tamazatocho Kagoshima City 70 Deep well 2017/9/5 >100 22.4 <1 <1 K-40 0.17 0.028 0.12 0.027 0.07 Kagoshima Prefecture 108 Manose Minamisatuma City 30 Deep well 2017/9/6 >100 14.6 <1 <1 K-40 0.093 0.026 0.068 0.027 0.06

109 Hirarahigashinakasonezoe Miyakojima City Unknown Unknown 2017/9/21 >100 72.5 <1 <1 K-40 0.030 0.019 ND 0.029 0.06 Okinawa Prefecture 110 Yab u Nago City 12 Shallow well 2017/9/22 >100 90.4 <1 <1 K-40 0.092 0.026 0.089 0.032 0.03

* This preliminary report does not contain counting errors concerning activity concentrations.